NBR

SEC source: 0001127602-20-000953 · form4.xml · nonDerivative · entry 4

PETRELLO ANTHONY G · CIK 0001195669 · Director · CHAIRMAN, PRESIDENT & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,409,729

F4 · kind: These Performance shares were earned and granted to Mr. Petrello pursuant to his employment agreement based on the achievement of certain objectives for the year 2019, as determined on January 2, 2020, by the Compensation Committee. The Performance shares are scheduled to vest in three (3) equal annual installments beginning on the first anniversary of the date of grant.

F4 · shares: These Performance shares were earned and granted to Mr. Petrello pursuant to his employment agreement based on the achievement of certain objectives for the year 2019, as determined on January 2, 2020, by the Compensation Committee. The Performance shares are scheduled to vest in three (3) equal annual installments beginning on the first anniversary of the date of grant.

SEC source: 0001127602-20-000953 · form4.xml · nonDerivative · entry 3

PETRELLO ANTHONY G · CIK 0001195669 · Director · CHAIRMAN, PRESIDENT & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,859,992

F3 · kind: Reflects the number of shares surrendered on January 2, 2020 to satisfy the tax withholding on the vesting of 127,505 TSR shares earned out of a total of 318,761 shares originally granted to Mr. Petrello on January 3, 2017, based on the Issuer's relative total shareholder return as compared to a peer group of companies during the three-year performance period beginning on January 1, 2017 and ending on December 31, 2019, as determined on January 2, 2020 by the Compensation Committee. The remaining 74,041 earned and vested shares were retained by the executive.

F3 · shares: Reflects the number of shares surrendered on January 2, 2020 to satisfy the tax withholding on the vesting of 127,505 TSR shares earned out of a total of 318,761 shares originally granted to Mr. Petrello on January 3, 2017, based on the Issuer's relative total shareholder return as compared to a peer group of companies during the three-year performance period beginning on January 1, 2017 and ending on December 31, 2019, as determined on January 2, 2020 by the Compensation Committee. The remaining 74,041 earned and vested shares were retained by the executive.

SEC source: 0001127602-20-000953 · form4.xml · nonDerivative · entry 2

PETRELLO ANTHONY G · CIK 0001195669 · Director · CHAIRMAN, PRESIDENT & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,913,456

F2 · kind: Represents the number of TSR shares forfeited on January 2, 2020, out of a total of 318,761 TSR shares originally granted to Mr. Petrello on January 3, 2017, based on the Issuer's relative total shareholder return as compared to a peer group of companies during the three-year performance period beginning on January 1, 2017 and ending on December 31, 2019, as determined on January 2, 2020 by the Compensation Committee of the Issuer's Board of Directors (the "Compensation Committee").

F2 · shares: Represents the number of TSR shares forfeited on January 2, 2020, out of a total of 318,761 TSR shares originally granted to Mr. Petrello on January 3, 2017, based on the Issuer's relative total shareholder return as compared to a peer group of companies during the three-year performance period beginning on January 1, 2017 and ending on December 31, 2019, as determined on January 2, 2020 by the Compensation Committee of the Issuer's Board of Directors (the "Compensation Committee").

SEC source: 0001127602-20-000955 · form4.xml · nonDerivative · entry 3

Restrepo William J · CIK 0001334321 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,082,269

F3 · kind: Represents an award of TSR shares that will only vest at the end of a three-year performance period (January 1, 2020 to December 31, 2022) based on the Issuer's relative total shareholder return as compared to a peer group of companies. The number of shares reported represents the maximum that may be earned, which is 200% of the target number. No number of shares is guaranteed to vest and the actual number of shares that will vest at the end of the performance period may be anywhere from zero to the amount stated.

F3 · shares: Represents an award of TSR shares that will only vest at the end of a three-year performance period (January 1, 2020 to December 31, 2022) based on the Issuer's relative total shareholder return as compared to a peer group of companies. The number of shares reported represents the maximum that may be earned, which is 200% of the target number. No number of shares is guaranteed to vest and the actual number of shares that will vest at the end of the performance period may be anywhere from zero to the amount stated.

SEC source: 0001127602-20-000955 · form4.xml · nonDerivative · entry 2

Restrepo William J · CIK 0001334321 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,593,547

F2 · kind: These Performance shares were earned and granted to Mr. Restrepo pursuant to his employment agreement based on the achievement of certain objectives for the year 2019, as determined on January 2, 2020, by the Compensation Committee. The Performance shares are scheduled to vest in three (3) equal annual installments beginning on the first anniversary of the date of grant.

F2 · shares: These Performance shares were earned and granted to Mr. Restrepo pursuant to his employment agreement based on the achievement of certain objectives for the year 2019, as determined on January 2, 2020, by the Compensation Committee. The Performance shares are scheduled to vest in three (3) equal annual installments beginning on the first anniversary of the date of grant.

SEC source: 0001127602-20-000955 · form4.xml · nonDerivative · entry 1

Restrepo William J · CIK 0001334321 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,168,897

F1 · kind: Represents the number of TSR shares forfeited on January 2, 2020, out of a total of 78,931 TSR shares originally granted to Mr. Restrepo on January 3, 2017, based on the Issuer's relative total shareholder return as compared to a peer group of companies during the three-year performance period beginning on January 1, 2017 and ending on December 31, 2019, as determined on January 2, 2020, by the Compensation Committee of the Issuer's Board of Directors (the "Compensation Committee").

F1 · shares: Represents the number of TSR shares forfeited on January 2, 2020, out of a total of 78,931 TSR shares originally granted to Mr. Restrepo on January 3, 2017, based on the Issuer's relative total shareholder return as compared to a peer group of companies during the three-year performance period beginning on January 1, 2017 and ending on December 31, 2019, as determined on January 2, 2020, by the Compensation Committee of the Issuer's Board of Directors (the "Compensation Committee").

SEC source: 0001127602-20-000953 · form4.xml · nonDerivative · entry 1

PETRELLO ANTHONY G · CIK 0001195669 · Director · CHAIRMAN, PRESIDENT & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,104,712

F1 · kind: Reflects the number of shares surrendered on December 31, 2019 to satisfy the tax withholding on the vesting of 250 restricted shares out of the 750 restricted shares originally granted on December 31, 2018. The 151 vested shares remaining were retained by the executive.

F1 · shares: Reflects the number of shares surrendered on December 31, 2019 to satisfy the tax withholding on the vesting of 250 restricted shares out of the 750 restricted shares originally granted on December 31, 2018. The 151 vested shares remaining were retained by the executive.

SEC source: 0001127602-19-035897 · form4.xml · nonDerivative · entry 1

Kotts John P · CIK 0001582064 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 476,133

SEC source: 0001127602-20-005399 · form5.xml · nonDerivative · entry 1

Kotts John P · CIK 0001582064 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Kotts Capital Holdings Limited Partnership

Disclosed balance after: 20,000

F1 · kind: The reporting of the transaction on Form 4 was not "timely filed" due to an administrative oversight.

F1 · shares: The reporting of the transaction on Form 4 was not "timely filed" due to an administrative oversight.

F2 · ownership.nature: Reporting Person may be deemed to have beneficial ownership of the shares held by Kotts Capital Holdings Limited Partnership ("Kotts Capital"). The general partner of Kotts Capital is Kotts Capital Holdings, Inc. ("KCHI"), which has a 1% partnership interest in Kotts Capital. A trust, of which Reporting Person's daughter is the sole beneficiary, has a 90% partnership interest in Kotts Capital. Reporting Person and Reporting Person's spouse have a 9% ownership interest in Kotts Capital.

SEC source: 0001127602-19-029716 · form4.xml · derivative · entry 1

Kotts John P · CIK 0001582064 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 61,141

Underlying: Common Stock · 61,141 shares

Expires 2029-09-30

F1 · kind: The Reporting Person elected to receive stock options in lieu of the quarterly cash payment he would normally receive as a Nabors director. The number of options was determined by dividing the foregone cash payment of $45,000 by the option price on the date of grant calculated in accordance with the Black-Scholes valuation model, or $0.7360 per share. The options are fully vested as of the date of grant, and have an exercise price of $1.87 per share, which is the market price of Nabors' common shares on the date of grant.

F1 · shares: The Reporting Person elected to receive stock options in lieu of the quarterly cash payment he would normally receive as a Nabors director. The number of options was determined by dividing the foregone cash payment of $45,000 by the option price on the date of grant calculated in accordance with the Black-Scholes valuation model, or $0.7360 per share. The options are fully vested as of the date of grant, and have an exercise price of $1.87 per share, which is the market price of Nabors' common shares on the date of grant.

F1 · price: The Reporting Person elected to receive stock options in lieu of the quarterly cash payment he would normally receive as a Nabors director. The number of options was determined by dividing the foregone cash payment of $45,000 by the option price on the date of grant calculated in accordance with the Black-Scholes valuation model, or $0.7360 per share. The options are fully vested as of the date of grant, and have an exercise price of $1.87 per share, which is the market price of Nabors' common shares on the date of grant.

F1 · derivative.underlying_shares: The Reporting Person elected to receive stock options in lieu of the quarterly cash payment he would normally receive as a Nabors director. The number of options was determined by dividing the foregone cash payment of $45,000 by the option price on the date of grant calculated in accordance with the Black-Scholes valuation model, or $0.7360 per share. The options are fully vested as of the date of grant, and have an exercise price of $1.87 per share, which is the market price of Nabors' common shares on the date of grant.

SEC source: 0001127602-19-026328 · form4.xml · nonDerivative · entry 1

Beder Tanya S · CIK 0001550533 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 219,409

F1 · kind: The purchase occurred in a private transaction in the open market.

F1 · shares: The purchase occurred in a private transaction in the open market.

SEC source: 0001127602-19-023787 · form4.xml · derivative · entry 1

Kotts John P · CIK 0001582064 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 37,323

Underlying: Common Stock · 37,323 shares

Expires 2029-06-28

F1 · kind: The Reporting Person elected to receive stock options in lieu of the quarterly cash payment he would normally receive as a Nabors director. The number of options was determined by dividing the foregone cash payment of $45,000 by the option price on the date of grant calculated in accordance with the Black-Scholes valuation model, or $1.2057 per share. The options are fully vested as of the date of grant, and have an exercise price of $2.90 per share, which is the market price of Nabors' common shares on the date of grant.

F1 · shares: The Reporting Person elected to receive stock options in lieu of the quarterly cash payment he would normally receive as a Nabors director. The number of options was determined by dividing the foregone cash payment of $45,000 by the option price on the date of grant calculated in accordance with the Black-Scholes valuation model, or $1.2057 per share. The options are fully vested as of the date of grant, and have an exercise price of $2.90 per share, which is the market price of Nabors' common shares on the date of grant.

F1 · price: The Reporting Person elected to receive stock options in lieu of the quarterly cash payment he would normally receive as a Nabors director. The number of options was determined by dividing the foregone cash payment of $45,000 by the option price on the date of grant calculated in accordance with the Black-Scholes valuation model, or $1.2057 per share. The options are fully vested as of the date of grant, and have an exercise price of $2.90 per share, which is the market price of Nabors' common shares on the date of grant.

F1 · derivative.underlying_shares: The Reporting Person elected to receive stock options in lieu of the quarterly cash payment he would normally receive as a Nabors director. The number of options was determined by dividing the foregone cash payment of $45,000 by the option price on the date of grant calculated in accordance with the Black-Scholes valuation model, or $1.2057 per share. The options are fully vested as of the date of grant, and have an exercise price of $2.90 per share, which is the market price of Nabors' common shares on the date of grant.

SEC source: 0001127602-19-022021 · form4.xml · nonDerivative · entry 2

Restrepo William J · CIK 0001334321 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,216,255

F1 · kind: The purchase occurred in a private transaction in the open market.

F1 · shares: The purchase occurred in a private transaction in the open market.

SEC source: 0001127602-19-022021 · form4.xml · nonDerivative · entry 1

Restrepo William J · CIK 0001334321 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,136,255

F1 · kind: The purchase occurred in a private transaction in the open market.

F1 · shares: The purchase occurred in a private transaction in the open market.

SEC source: 0001127602-19-021373 · form4.xml · nonDerivative · entry 1

PETRELLO ANTHONY G · CIK 0001195669 · Director · CHAIRMAN, PRESIDENT & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,659,803

F1 · kind: Reflects the number of shares surrendered on June 7, 2019 to satisfy the tax withholding on the vesting of 361,197 shares of the 1,083,591 performance shares originally issued on June 7, 2016. The remaining 219,065 vested shares were retained by the executive.

F1 · shares: Reflects the number of shares surrendered on June 7, 2019 to satisfy the tax withholding on the vesting of 361,197 shares of the 1,083,591 performance shares originally issued on June 7, 2016. The remaining 219,065 vested shares were retained by the executive.

SEC source: 0001127602-19-020930 · form4.xml · nonDerivative · entry 1

CRANE JAMES R · CIK 0001007833 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 273,333

F1 · kind: The restricted stock award is scheduled to vest on the first anniversary of the grant date.

F1 · shares: The restricted stock award is scheduled to vest on the first anniversary of the grant date.

SEC source: 0001127602-19-020926 · form4.xml · nonDerivative · entry 1

Linn Michael C · CIK 0001349033 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 273,333

F1 · kind: The restricted stock award is scheduled to vest on the first anniversary of the grant date.

F1 · shares: The restricted stock award is scheduled to vest on the first anniversary of the grant date.

SEC source: 0001127602-19-020937 · form4.xml · nonDerivative · entry 1

YEARWOOD JOHN · CIK 0001381972 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 494,333

F1 · kind: The restricted stock award is scheduled to vest on the first anniversary of the grant date.

F1 · shares: The restricted stock award is scheduled to vest on the first anniversary of the grant date.

SEC source: 0001127602-19-020934 · form4.xml · nonDerivative · entry 1

Kotts John P · CIK 0001582064 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 481,333

F1 · kind: The restricted stock award is scheduled to vest on the first anniversary of the grant date.

F1 · shares: The restricted stock award is scheduled to vest on the first anniversary of the grant date.

SEC source: 0001127602-19-020932 · form4.xml · nonDerivative · entry 1

CHASE ANTHONY R · CIK 0001223756 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 96,899

F1 · kind: The restricted stock award is scheduled to vest on the first anniversary of the grant date.

F1 · shares: The restricted stock award is scheduled to vest on the first anniversary of the grant date.

SEC source: 0001127602-19-020928 · form4.xml · nonDerivative · entry 1

Beder Tanya S · CIK 0001550533 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 169,409

F1 · kind: The restricted stock award is scheduled to vest on the first anniversary of the grant date.

F1 · shares: The restricted stock award is scheduled to vest on the first anniversary of the grant date.

SEC source: 0001127602-19-014220 · form4.xml · derivative · entry 1

CHASE ANTHONY R · CIK 0001223756 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,851

Underlying: Common Stock · 8,851 shares

Expires 2029-03-29

F1 · kind: The Reporting Person elected to receive stock options in lieu of the quarterly cash payment he would normally receive as a Nabors director. The number of options was determined by dividing the foregone cash payment of $13,000 by the option price on the date of grant calculated in accordance with the Black-Scholes valuation model, or $1.4687 per share. The options are fully vested as of the date of grant, and have an exercise price of $3.44 per share, which is the market price of Nabors' common shares on the date of grant.

F1 · shares: The Reporting Person elected to receive stock options in lieu of the quarterly cash payment he would normally receive as a Nabors director. The number of options was determined by dividing the foregone cash payment of $13,000 by the option price on the date of grant calculated in accordance with the Black-Scholes valuation model, or $1.4687 per share. The options are fully vested as of the date of grant, and have an exercise price of $3.44 per share, which is the market price of Nabors' common shares on the date of grant.

F1 · price: The Reporting Person elected to receive stock options in lieu of the quarterly cash payment he would normally receive as a Nabors director. The number of options was determined by dividing the foregone cash payment of $13,000 by the option price on the date of grant calculated in accordance with the Black-Scholes valuation model, or $1.4687 per share. The options are fully vested as of the date of grant, and have an exercise price of $3.44 per share, which is the market price of Nabors' common shares on the date of grant.

F1 · derivative.underlying_shares: The Reporting Person elected to receive stock options in lieu of the quarterly cash payment he would normally receive as a Nabors director. The number of options was determined by dividing the foregone cash payment of $13,000 by the option price on the date of grant calculated in accordance with the Black-Scholes valuation model, or $1.4687 per share. The options are fully vested as of the date of grant, and have an exercise price of $3.44 per share, which is the market price of Nabors' common shares on the date of grant.

SEC source: 0001127602-19-014213 · form4.xml · derivative · entry 1

Kotts John P · CIK 0001582064 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,639

Underlying: Common Stock · 30,639 shares

Expires 2029-03-29

F1 · kind: The Reporting Person elected to receive stock options in lieu of the quarterly cash payment he would normally receive as a Nabors director. The number of options was determined by dividing the foregone cash payment of $45,000 by the option price on the date of grant calculated in accordance with the Black-Scholes valuation model, or $1.4687 per share. The options are fully vested as of the date of grant, and have an exercise price of $3.44 per share, which is the market price of Nabors' common shares on the date of grant.

F1 · shares: The Reporting Person elected to receive stock options in lieu of the quarterly cash payment he would normally receive as a Nabors director. The number of options was determined by dividing the foregone cash payment of $45,000 by the option price on the date of grant calculated in accordance with the Black-Scholes valuation model, or $1.4687 per share. The options are fully vested as of the date of grant, and have an exercise price of $3.44 per share, which is the market price of Nabors' common shares on the date of grant.

F1 · price: The Reporting Person elected to receive stock options in lieu of the quarterly cash payment he would normally receive as a Nabors director. The number of options was determined by dividing the foregone cash payment of $45,000 by the option price on the date of grant calculated in accordance with the Black-Scholes valuation model, or $1.4687 per share. The options are fully vested as of the date of grant, and have an exercise price of $3.44 per share, which is the market price of Nabors' common shares on the date of grant.

F1 · derivative.underlying_shares: The Reporting Person elected to receive stock options in lieu of the quarterly cash payment he would normally receive as a Nabors director. The number of options was determined by dividing the foregone cash payment of $45,000 by the option price on the date of grant calculated in accordance with the Black-Scholes valuation model, or $1.4687 per share. The options are fully vested as of the date of grant, and have an exercise price of $3.44 per share, which is the market price of Nabors' common shares on the date of grant.

SEC source: 0001127602-19-008502 · form4.xml · nonDerivative · entry 2

PETRELLO ANTHONY G · CIK 0001195669 · Director · CHAIRMAN, PRESIDENT & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,801,935

F2 · kind: Reflects the number of shares surrendered on February 23, 2019 to satisfy the tax withholding on the vesting of 283,921 shares of the 851,763 performance shares originally granted on February 23, 2018. The remaining 172,306 vested shares were retained by the executive.

SEC source: 0001127602-19-008480 · form4.xml · nonDerivative · entry 1

Andrews Mark D · CIK 0001414596 · CORPORATE SECRETARY

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 59,939

F1 · kind: The restricted stock award vests in four (4) equal annual installments beginning on the first anniversary of the date of the award.

F1 · shares: The restricted stock award vests in four (4) equal annual installments beginning on the first anniversary of the date of the award.

SEC source: 0001127602-19-008502 · form4.xml · nonDerivative · entry 1

PETRELLO ANTHONY G · CIK 0001195669 · Director · CHAIRMAN, PRESIDENT & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,913,550

F1 · kind: These Performance shares were earned and granted to Mr. Petrello pursuant to his employment agreement based on the achievement of certain objectives for the year 2018, as determined on February 22, 2019, by the Compensation Committee. The Performance shares are scheduled to vest in three (3) equal annual installments beginning on the first anniversary of the date of grant.

F1 · shares: These Performance shares were earned and granted to Mr. Petrello pursuant to his employment agreement based on the achievement of certain objectives for the year 2018, as determined on February 22, 2019, by the Compensation Committee. The Performance shares are scheduled to vest in three (3) equal annual installments beginning on the first anniversary of the date of grant.

SEC source: 0001127602-19-008498 · form4.xml · nonDerivative · entry 1

Restrepo William J · CIK 0001334321 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,039,155

F1 · kind: These Performance shares were earned and granted to Mr. Restrepo pursuant to his employment agreement based on the achievement of certain objectives for the year 2018, as determined on February 22, 2019, by the Compensation Committee. The Performance shares are scheduled to vest in three (3) equal annual installments beginning on the first anniversary of the date of grant.

F1 · shares: These Performance shares were earned and granted to Mr. Restrepo pursuant to his employment agreement based on the achievement of certain objectives for the year 2018, as determined on February 22, 2019, by the Compensation Committee. The Performance shares are scheduled to vest in three (3) equal annual installments beginning on the first anniversary of the date of grant.

SEC source: 0001127602-19-007265 · form4.xml · nonDerivative · entry 1

PETRELLO ANTHONY G · CIK 0001195669 · Director · CHAIRMAN, PRESIDENT & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,914,866

F1 · kind: Reflects the number of shares surrendered on February 17, 2019 to satisfy the tax withholding on the vesting of 127,142 shares of the 381,424 performance shares originally granted on February 17, 2017. The remaining 76,677 vested shares were retained by the executive.

SEC source: 0001127602-19-001001 · form4.xml · nonDerivative · entry 7

PETRELLO ANTHONY G · CIK 0001195669 · Director · CHAIRMAN, PRESIDENT & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,965,331

F5 · kind: Represents an award of TSR shares that will only vest at the end of a three-year performance period (January 1, 2019 to December 31, 2021) based on the Issuer's relative total shareholder return as compared to a peer group of companies. The number of shares reported represents the maximum that may be earned, which is 200% of the target number. No number of shares is guaranteed to vest and the actual number of shares that will vest at the end of the performance period may be anywhere from zero to the amount stated.

F5 · shares: Represents an award of TSR shares that will only vest at the end of a three-year performance period (January 1, 2019 to December 31, 2021) based on the Issuer's relative total shareholder return as compared to a peer group of companies. The number of shares reported represents the maximum that may be earned, which is 200% of the target number. No number of shares is guaranteed to vest and the actual number of shares that will vest at the end of the performance period may be anywhere from zero to the amount stated.

SEC source: 0001127602-19-001001 · form4.xml · nonDerivative · entry 6

PETRELLO ANTHONY G · CIK 0001195669 · Director · CHAIRMAN, PRESIDENT & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,873,698

F4 · kind: Reflects the number of shares surrendered on January 2, 2019 to satisfy the tax withholding on the vesting of 150,172 TSR shares earned out of a total of 600,686 shares originally granted to Mr. Petrello on January 4, 2016, based on the Issuer's relative total shareholder return as compared to a peer group of companies during the three-year performance period beginning on January 1, 2016 and ending on December 31, 2018, as determined on January 2, 2019 by the Compensation Committee. The remaining 86,944 earned and vested shares were retained by the executive.

F4 · shares: Reflects the number of shares surrendered on January 2, 2019 to satisfy the tax withholding on the vesting of 150,172 TSR shares earned out of a total of 600,686 shares originally granted to Mr. Petrello on January 4, 2016, based on the Issuer's relative total shareholder return as compared to a peer group of companies during the three-year performance period beginning on January 1, 2016 and ending on December 31, 2018, as determined on January 2, 2019 by the Compensation Committee. The remaining 86,944 earned and vested shares were retained by the executive.

SEC source: 0001127602-19-001001 · form4.xml · nonDerivative · entry 5

PETRELLO ANTHONY G · CIK 0001195669 · Director · CHAIRMAN, PRESIDENT & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,936,926

F3 · kind: Represents the number of TSR shares forfeited on January 2, 2019, out of a total of 600,686 TSR shares originally granted to Mr. Petrello on January 4, 2016, based on the Issuer's relative total shareholder return as compared to a peer group of companies during the three-year performance period beginning on January 1, 2016 and ending on December 31, 2018, as determined on January 2, 2019 by the Compensation Committee.

F3 · shares: Represents the number of TSR shares forfeited on January 2, 2019, out of a total of 600,686 TSR shares originally granted to Mr. Petrello on January 4, 2016, based on the Issuer's relative total shareholder return as compared to a peer group of companies during the three-year performance period beginning on January 1, 2016 and ending on December 31, 2018, as determined on January 2, 2019 by the Compensation Committee.

SEC source: 0001127602-19-000998 · form4.xml · nonDerivative · entry 2

Restrepo William J · CIK 0001334321 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,625,208

F2 · kind: Represents an award of TSR shares that will only vest at the end of a three-year performance period (January 1, 2019 to December 31, 2021) based on the Issuer's relative total shareholder return as compared to a peer group of companies. The number of shares reported represents the maximum that may be earned, which is 200% of the target number. No number of shares is guaranteed to vest and the actual number of shares that will vest at the end of the performance period may be anywhere from zero to the amount stated.

F2 · shares: Represents an award of TSR shares that will only vest at the end of a three-year performance period (January 1, 2019 to December 31, 2021) based on the Issuer's relative total shareholder return as compared to a peer group of companies. The number of shares reported represents the maximum that may be earned, which is 200% of the target number. No number of shares is guaranteed to vest and the actual number of shares that will vest at the end of the performance period may be anywhere from zero to the amount stated.

SEC source: 0001127602-19-000998 · form4.xml · nonDerivative · entry 1

Restrepo William J · CIK 0001334321 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,107,280

F1 · kind: Represents the number of TSR shares forfeited on January 2, 2019, out of a total of 148,741 TSR shares originally granted to Mr. Restrepo on January 4, 2016, based on the Issuer's relative total shareholder return as compared to a peer group of companies during the three-year performance period beginning on January 1, 2016 and ending on December 31, 2018, as determined on January 2, 2019, by the Compensation Committee of the Issuer's Board of Directors (the "Compensation Committee").

F1 · shares: Represents the number of TSR shares forfeited on January 2, 2019, out of a total of 148,741 TSR shares originally granted to Mr. Restrepo on January 4, 2016, based on the Issuer's relative total shareholder return as compared to a peer group of companies during the three-year performance period beginning on January 1, 2016 and ending on December 31, 2018, as determined on January 2, 2019, by the Compensation Committee of the Issuer's Board of Directors (the "Compensation Committee").

SEC source: 0001127602-19-001001 · form4.xml · nonDerivative · entry 4

PETRELLO ANTHONY G · CIK 0001195669 · Director · CHAIRMAN, PRESIDENT & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,387,440

F2 · kind: On December 31, 2018, the Compensation Committee of the Issuer's Board of Directors (the "Compensation Committee") approved a transaction pursuant to which Mr. Petrello forfeited awards of restricted stock eligible to vest based on the Issuer's relative total shareholder return as compared to a peer group of companies ("TSR Shares") consisting of an aggregate of 848,142 shares, in exchange for which he received an award of 750 restricted shares that vests in equal installments on the first three anniversaries of the date of grant.

F2 · shares: On December 31, 2018, the Compensation Committee of the Issuer's Board of Directors (the "Compensation Committee") approved a transaction pursuant to which Mr. Petrello forfeited awards of restricted stock eligible to vest based on the Issuer's relative total shareholder return as compared to a peer group of companies ("TSR Shares") consisting of an aggregate of 848,142 shares, in exchange for which he received an award of 750 restricted shares that vests in equal installments on the first three anniversaries of the date of grant.

SEC source: 0001127602-19-001001 · form4.xml · nonDerivative · entry 3

PETRELLO ANTHONY G · CIK 0001195669 · Director · CHAIRMAN, PRESIDENT & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,386,690

F2 · kind: On December 31, 2018, the Compensation Committee of the Issuer's Board of Directors (the "Compensation Committee") approved a transaction pursuant to which Mr. Petrello forfeited awards of restricted stock eligible to vest based on the Issuer's relative total shareholder return as compared to a peer group of companies ("TSR Shares") consisting of an aggregate of 848,142 shares, in exchange for which he received an award of 750 restricted shares that vests in equal installments on the first three anniversaries of the date of grant.

F2 · shares: On December 31, 2018, the Compensation Committee of the Issuer's Board of Directors (the "Compensation Committee") approved a transaction pursuant to which Mr. Petrello forfeited awards of restricted stock eligible to vest based on the Issuer's relative total shareholder return as compared to a peer group of companies ("TSR Shares") consisting of an aggregate of 848,142 shares, in exchange for which he received an award of 750 restricted shares that vests in equal installments on the first three anniversaries of the date of grant.

SEC source: 0001127602-19-001001 · form4.xml · nonDerivative · entry 2

PETRELLO ANTHONY G · CIK 0001195669 · Director · CHAIRMAN, PRESIDENT & CEO

10b5-1 filing: Not disclosed

Ownership: Indirect · Trust

Disclosed balance after: 5,982,586

F1 · kind: These shares were donated to a charitable foundation for which Mr. Petrello has shared voting and dispositive power. Mr. Petrello disclaims beneficial ownership of the shares held by the charitable foundation.

F1 · shares: These shares were donated to a charitable foundation for which Mr. Petrello has shared voting and dispositive power. Mr. Petrello disclaims beneficial ownership of the shares held by the charitable foundation.

SEC source: 0001127602-19-000760 · form4.xml · derivative · entry 1

Kotts John P · CIK 0001582064 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 65,212

Underlying: Common Stock · 65,212 shares

Expires 2028-12-31

F1 · kind: The Reporting Person elected to receive stock options in lieu of the quarterly cash payment he would normally receive as a Nabors director. The number of options was determined by dividing the foregone cash payment of $55,000 by the option price on the date of grant calculated in accordance with the Black-Scholes valuation model, or $0.8434 per share. The options are fully vested as of the date of grant, and have an exercise price of $2.00 per share, which is the market price of Nabors' common shares on the date of grant.

F1 · shares: The Reporting Person elected to receive stock options in lieu of the quarterly cash payment he would normally receive as a Nabors director. The number of options was determined by dividing the foregone cash payment of $55,000 by the option price on the date of grant calculated in accordance with the Black-Scholes valuation model, or $0.8434 per share. The options are fully vested as of the date of grant, and have an exercise price of $2.00 per share, which is the market price of Nabors' common shares on the date of grant.

F1 · price: The Reporting Person elected to receive stock options in lieu of the quarterly cash payment he would normally receive as a Nabors director. The number of options was determined by dividing the foregone cash payment of $55,000 by the option price on the date of grant calculated in accordance with the Black-Scholes valuation model, or $0.8434 per share. The options are fully vested as of the date of grant, and have an exercise price of $2.00 per share, which is the market price of Nabors' common shares on the date of grant.

SEC source: 0001127602-18-032524 · form4.xml · nonDerivative · entry 3

Kotts John P · CIK 0001582064 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 384,434

SEC source: 0001127602-18-032524 · form4.xml · nonDerivative · entry 2

Kotts John P · CIK 0001582064 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 330,630

SEC source: 0001127602-18-032524 · form4.xml · nonDerivative · entry 1

Kotts John P · CIK 0001582064 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 301,949

SEC source: 0001127602-18-031871 · form4.xml · nonDerivative · entry 1

YEARWOOD JOHN · CIK 0001381972 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 397,434

SEC source: 0001127602-18-029148 · form4.xml · derivative · entry 1

Kotts John P · CIK 0001582064 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,542

Underlying: Common Stock · 25,542 shares

Expires 2028-09-28

F1 · kind: The Reporting Person elected to receive stock options in lieu of the quarterly cash payment he would normally receive as a Nabors director. The number of options was determined by dividing the foregone cash payment of $55,000 by the option price on the date of grant calculated in accordance with the Black-Scholes valuation model, or $2.1533 per share. The options are fully vested as of the date of grant, and have an exercise price of $6.16 per share, which is the market price of Nabors' common shares on the date of grant.

F1 · shares: The Reporting Person elected to receive stock options in lieu of the quarterly cash payment he would normally receive as a Nabors director. The number of options was determined by dividing the foregone cash payment of $55,000 by the option price on the date of grant calculated in accordance with the Black-Scholes valuation model, or $2.1533 per share. The options are fully vested as of the date of grant, and have an exercise price of $6.16 per share, which is the market price of Nabors' common shares on the date of grant.

F1 · price: The Reporting Person elected to receive stock options in lieu of the quarterly cash payment he would normally receive as a Nabors director. The number of options was determined by dividing the foregone cash payment of $55,000 by the option price on the date of grant calculated in accordance with the Black-Scholes valuation model, or $2.1533 per share. The options are fully vested as of the date of grant, and have an exercise price of $6.16 per share, which is the market price of Nabors' common shares on the date of grant.

SEC source: 0001127602-19-001001 · form4.xml · nonDerivative · entry 1

PETRELLO ANTHONY G · CIK 0001195669 · Director · CHAIRMAN, PRESIDENT & CEO

10b5-1 filing: Not disclosed

Ownership: Indirect · Trust

Disclosed balance after: 6,232,586

SEC source: 0001127602-18-027240 · form4.xml · nonDerivative · entry 1

Skattum Dag · CIK 0001609972 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 75,754

F1 · kind: Represents the number of unvested restricted shares forfeited on August 31, 2018 following Mr. Skattum's resignation from the Company's Board of Directors, effective August 31, 2018.

F1 · shares: Represents the number of unvested restricted shares forfeited on August 31, 2018 following Mr. Skattum's resignation from the Company's Board of Directors, effective August 31, 2018.

SEC source: 0001127602-18-022562 · form4.xml · derivative · entry 1

Skattum Dag · CIK 0001609972 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,783

Underlying: Common Stock · 17,783 shares

Expires 2028-06-29

F1 · kind: The Reporting Person elected to receive stock options in lieu of the quarterly cash payment he would normally receive as a Nabors director. The number of options was determined by dividing the foregone cash payment of $40,000 by the option price on the date of grant calculated in accordance with the Black-Scholes valuation model, or $2.2494 per share. The options are fully vested as of the date of grant, and have an exercise price of $6.41 per share, which is the closing price of Nabors' common shares on the date of grant.

F1 · shares: The Reporting Person elected to receive stock options in lieu of the quarterly cash payment he would normally receive as a Nabors director. The number of options was determined by dividing the foregone cash payment of $40,000 by the option price on the date of grant calculated in accordance with the Black-Scholes valuation model, or $2.2494 per share. The options are fully vested as of the date of grant, and have an exercise price of $6.41 per share, which is the closing price of Nabors' common shares on the date of grant.

F1 · price: The Reporting Person elected to receive stock options in lieu of the quarterly cash payment he would normally receive as a Nabors director. The number of options was determined by dividing the foregone cash payment of $40,000 by the option price on the date of grant calculated in accordance with the Black-Scholes valuation model, or $2.2494 per share. The options are fully vested as of the date of grant, and have an exercise price of $6.41 per share, which is the closing price of Nabors' common shares on the date of grant.

F1 · derivative.underlying_shares: The Reporting Person elected to receive stock options in lieu of the quarterly cash payment he would normally receive as a Nabors director. The number of options was determined by dividing the foregone cash payment of $40,000 by the option price on the date of grant calculated in accordance with the Black-Scholes valuation model, or $2.2494 per share. The options are fully vested as of the date of grant, and have an exercise price of $6.41 per share, which is the closing price of Nabors' common shares on the date of grant.

SEC source: 0001127602-18-022564 · form4.xml · derivative · entry 1

Kotts John P · CIK 0001582064 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,451

Underlying: Common Stock · 24,451 shares

Expires 2028-06-29

F1 · kind: The Reporting Person elected to receive stock options in lieu of the quarterly cash payment he would normally receive as a Nabors director. The number of options was determined by dividing the foregone cash payment of $55,000 by the option price on the date of grant calculated in accordance with the Black-Scholes valuation model, or $2.2494 per share. The options are fully vested as of the date of grant, and have an exercise price of $6.41 per share, which is the closing price of Nabors' common shares on the date of grant.

F1 · shares: The Reporting Person elected to receive stock options in lieu of the quarterly cash payment he would normally receive as a Nabors director. The number of options was determined by dividing the foregone cash payment of $55,000 by the option price on the date of grant calculated in accordance with the Black-Scholes valuation model, or $2.2494 per share. The options are fully vested as of the date of grant, and have an exercise price of $6.41 per share, which is the closing price of Nabors' common shares on the date of grant.

F1 · price: The Reporting Person elected to receive stock options in lieu of the quarterly cash payment he would normally receive as a Nabors director. The number of options was determined by dividing the foregone cash payment of $55,000 by the option price on the date of grant calculated in accordance with the Black-Scholes valuation model, or $2.2494 per share. The options are fully vested as of the date of grant, and have an exercise price of $6.41 per share, which is the closing price of Nabors' common shares on the date of grant.

F1 · derivative.underlying_shares: The Reporting Person elected to receive stock options in lieu of the quarterly cash payment he would normally receive as a Nabors director. The number of options was determined by dividing the foregone cash payment of $55,000 by the option price on the date of grant calculated in accordance with the Black-Scholes valuation model, or $2.2494 per share. The options are fully vested as of the date of grant, and have an exercise price of $6.41 per share, which is the closing price of Nabors' common shares on the date of grant.

SEC source: 0001127602-18-020617 · form4.xml · nonDerivative · entry 1

Restrepo William J · CIK 0001334321 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,218,835

F1 · kind: Reflects the number of shares surrendered on June 7, 2018 to satisfy the tax withholding on the vesting of 67,080 shares of the 201,238 performance shares originally issued on June 7, 2016. The remaining 42,192 vested shares were retained by the executive.

F1 · shares: Reflects the number of shares surrendered on June 7, 2018 to satisfy the tax withholding on the vesting of 67,080 shares of the 201,238 performance shares originally issued on June 7, 2016. The remaining 42,192 vested shares were retained by the executive.

SEC source: 0001127602-18-020620 · form4.xml · nonDerivative · entry 1

PETRELLO ANTHONY G · CIK 0001195669 · Director · CHAIRMAN, PRESIDENT & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,817,227

F1 · kind: Reflects the number of shares surrendered on June 7, 2018 to satisfy the tax withholding on the vesting of 361,197 shares of the 1,083,591 performance shares originally issued on June 7, 2016. The remaining 219,065 vested shares were retained by the executive.

F1 · shares: Reflects the number of shares surrendered on June 7, 2018 to satisfy the tax withholding on the vesting of 361,197 shares of the 1,083,591 performance shares originally issued on June 7, 2016. The remaining 219,065 vested shares were retained by the executive.

SEC source: 0001127602-18-020369 · form4.xml · nonDerivative · entry 1

CRANE JAMES R · CIK 0001007833 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 176,434

F1 · kind: The restricted stock award is scheduled to vest on the first anniversary of the grant date.

F1 · shares: The restricted stock award is scheduled to vest on the first anniversary of the grant date.

SEC source: 0001127602-18-020377 · form4.xml · nonDerivative · entry 1

Kotts John P · CIK 0001582064 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 284,434

F1 · kind: The restricted stock award is scheduled to vest on the first anniversary of the grant date.

F1 · shares: The restricted stock award is scheduled to vest on the first anniversary of the grant date.