NBR

SEC source: 0001127602-18-020375 · form4.xml · nonDerivative · entry 1

YEARWOOD JOHN · CIK 0001381972 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 200,434

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: 0001127602-18-020373 · form4.xml · nonDerivative · entry 1

Skattum Dag · CIK 0001609972 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 149,434

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: 0001127602-18-020371 · form4.xml · nonDerivative · entry 1

Linn Michael C · CIK 0001349033 · 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: 0001127602-18-020367 · form4.xml · nonDerivative · entry 1

Beder Tanya S · CIK 0001550533 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 72,510

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: 0001127602-18-015324 · form4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,959,359

F1 · kind: Reflects the number of shares surrendered on April 24, 2018 to satisfy the tax withholding on the vesting of the remaining 174,534 shares originally granted on April 24, 2015. The 105,854 vested shares remaining were retained by the executive.

F1 · shares: Reflects the number of shares surrendered on April 24, 2018 to satisfy the tax withholding on the vesting of the remaining 174,534 shares originally granted on April 24, 2015. The 105,854 vested shares remaining were retained by the executive.

SEC source: 0001127602-18-013868 · form4.xml · derivative · entry 1

Kotts John P · CIK 0001582064 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,079

Underlying: Common Stock · 22,079 shares

Expires 2028-03-29

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 $55,000 by the option price on the date of grant calculated in accordance with the Black-Scholes valuation model, or $2.4911 per share. The options are fully vested as of the date of grant, and have an exercise price of $6.99 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 $2.4911 per share. The options are fully vested as of the date of grant, and have an exercise price of $6.99 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 $2.4911 per share. The options are fully vested as of the date of grant, and have an exercise price of $6.99 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 $2.4911 per share. The options are fully vested as of the date of grant, and have an exercise price of $6.99 per share, which is the closing price of Nabors' common shares on the date of grant.

SEC source: 0001127602-18-013862 · form4.xml · derivative · entry 1

Skattum Dag · CIK 0001609972 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,057

Underlying: Common Stock · 16,057 shares

Expires 2028-03-29

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 $40,000 by the option price on the date of grant calculated in accordance with the Black-Scholes valuation model, or $2.4911 per share. The options are fully vested as of the date of grant, and have an exercise price of $6.99 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 $2.4911 per share. The options are fully vested as of the date of grant, and have an exercise price of $6.99 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 $2.4911 per share. The options are fully vested as of the date of grant, and have an exercise price of $6.99 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 $2.4911 per share. The options are fully vested as of the date of grant, and have an exercise price of $6.99 per share, which is the closing price of Nabors' common shares on the date of grant.

SEC source: 0001127602-18-008713 · form4.xml · nonDerivative · entry 2

Restrepo William J · CIK 0001334321 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,243,723

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 2017, as determined on February 23, 2018, 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 2017, as determined on February 23, 2018, 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: 0001127602-18-008713 · form4.xml · nonDerivative · entry 1

Restrepo William J · CIK 0001334321 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,085,538

F1 · kind: Represents the number of TSR shares forfeited on February 23, 2018, out of a total of 108,153 TSR shares originally granted to Mr. Restrepo on January 1, 2015 in accordance with his employment agreement, based on the Company's relative total shareholder return against a peer group of companies during the three-year performance period beginning on January 1, 2015 and ending on December 31, 2017, as determined on February 23, 2018 by the Compensation Committee of the Company's Board of Directors (the "Compensation Committee").

F1 · shares: Represents the number of TSR shares forfeited on February 23, 2018, out of a total of 108,153 TSR shares originally granted to Mr. Restrepo on January 1, 2015 in accordance with his employment agreement, based on the Company's relative total shareholder return against a peer group of companies during the three-year performance period beginning on January 1, 2015 and ending on December 31, 2017, as determined on February 23, 2018 by the Compensation Committee of the Company's Board of Directors (the "Compensation Committee").

SEC source: 0001127602-18-008736 · form4.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,028,039

F3 · 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 2017, as determined on February 23, 2018, 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.

F3 · 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 2017, as determined on February 23, 2018, 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: 0001127602-18-008736 · form4.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,176,276

F2 · kind: Reflects the number of shares surrendered on February 23, 2018 to satisfy the tax withholding on the vesting of 174,709 TSR shares earned out of a total of 436,772 shares originally granted to Mr. Petrello on January 1, 2015 in accordance with his employment agreement, based on the Company's relative total shareholder return against a peer group of companies during the three-year performance period beginning on January 1, 2015 and ending on December 31, 2017, as determined on February 23, 2018 by the Compensation Committee. The remaining 105,960 earned and vested shares were retained by the executive.

F2 · shares: Reflects the number of shares surrendered on February 23, 2018 to satisfy the tax withholding on the vesting of 174,709 TSR shares earned out of a total of 436,772 shares originally granted to Mr. Petrello on January 1, 2015 in accordance with his employment agreement, based on the Company's relative total shareholder return against a peer group of companies during the three-year performance period beginning on January 1, 2015 and ending on December 31, 2017, as determined on February 23, 2018 by the Compensation Committee. The remaining 105,960 earned and vested shares were retained by the executive.

SEC source: 0001127602-18-008736 · form4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,245,025

F1 · kind: Represents the number of TSR shares forfeited on February 23, 2018, out of a total of 436,772 TSR shares originally granted to Mr. Petrello on January 1, 2015 in accordance with his employment agreement, based on the Company's relative total shareholder return against a peer group of companies during the three-year performance period beginning on January 1, 2015 and ending on December 31, 2017, as determined on February 23, 2018 by the Compensation Committee of the Company's Board of Directors (the "Compensation Committee").

F1 · shares: Represents the number of TSR shares forfeited on February 23, 2018, out of a total of 436,772 TSR shares originally granted to Mr. Petrello on January 1, 2015 in accordance with his employment agreement, based on the Company's relative total shareholder return against a peer group of companies during the three-year performance period beginning on January 1, 2015 and ending on December 31, 2017, as determined on February 23, 2018 by the Compensation Committee of the Company's Board of Directors (the "Compensation Committee").

SEC source: 0001127602-18-008666 · form4.xml · nonDerivative · entry 1

Andrews Mark D · CIK 0001414596 · CORPORATE SECRETARY

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,439

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: 0001127602-18-007642 · form4.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,507,088

F2 · kind: Reflects the number of shares surrendered on February 20, 2018 to satisfy the tax withholding on the vesting of 76,945 of the 384,721 performance shares originally granted on February 20, 2015. The remaining 75,203 vested shares were retained by the executive.

F2 · shares: Reflects the number of shares surrendered on February 20, 2018 to satisfy the tax withholding on the vesting of 76,945 of the 384,721 performance shares originally granted on February 20, 2015. The remaining 75,203 vested shares were retained by the executive.

SEC source: 0001127602-18-007642 · form4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,508,830

F1 · kind: Reflects the number of shares surrendered on February 17, 2018 to satisfy the tax withholding on the vesting of 127,141 shares of the 381,424 performance shares originally granted on February 17, 2018. The remaining 76,313 vested shares were retained by the executive.

F1 · shares: Reflects the number of shares surrendered on February 17, 2018 to satisfy the tax withholding on the vesting of 127,141 shares of the 381,424 performance shares originally granted on February 17, 2018. The remaining 76,313 vested shares were retained by the executive.

SEC source: 0001127602-18-001190 · form4.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,559,658

F2 · kind: These TSR shares will only vest at the end of a three-year performance period (January 1, 2018 to December 31, 2020) based on achieving the Company's relative total shareholder return against 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: These TSR shares will only vest at the end of a three-year performance period (January 1, 2018 to December 31, 2020) based on achieving the Company's relative total shareholder return against 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: 0001127602-18-001187 · form4.xml · nonDerivative · entry 1

Restrepo William J · CIK 0001334321 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,150,430

F1 · kind: These TSR shares will only vest at the end of a three-year performance period (January 1, 2018 to December 31, 2020) based on achieving the Company's relative total shareholder return against 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.

F1 · shares: These TSR shares will only vest at the end of a three-year performance period (January 1, 2018 to December 31, 2020) based on achieving the Company's relative total shareholder return against 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: 0001127602-18-000737 · form4.xml · nonDerivative · entry 1

Restrepo William J · CIK 0001334321 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 940,414

F1 · kind: Reflects the number of shares surrendered to satisfy the tax withholding on the vesting of 53,518 shares of restricted stock on December 31, 2017. The remaining 32,238 shares were retained by the executive.

F1 · shares: Reflects the number of shares surrendered to satisfy the tax withholding on the vesting of 53,518 shares of restricted stock on December 31, 2017. The remaining 32,238 shares were retained by the executive.

SEC source: 0001127602-18-000752 · form4.xml · derivative · entry 1

Kotts John P · CIK 0001582064 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,410

Underlying: Common Stock · 24,410 shares

Expires 2027-12-29

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 $2.2532 per share. The options are fully vested as of the date of grant, and have an exercise price of $6.83 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 $2.2532 per share. The options are fully vested as of the date of grant, and have an exercise price of $6.83 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 $2.2532 per share. The options are fully vested as of the date of grant, and have an exercise price of $6.83 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 $2.2532 per share. The options are fully vested as of the date of grant, and have an exercise price of $6.83 per share, which is the closing price of Nabors' common shares on the date of grant.

SEC source: 0001127602-18-000744 · form4.xml · derivative · entry 1

Skattum Dag · CIK 0001609972 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,380

Underlying: Common Stock · 18,380 shares

Expires 2027-12-29

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 $41,413 by the option price on the date of grant calculated in accordance with the Black-Scholes valuation model, or $2.2532 per share. The options are fully vested as of the date of grant, and have an exercise price of $6.83 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 $41,413 by the option price on the date of grant calculated in accordance with the Black-Scholes valuation model, or $2.2532 per share. The options are fully vested as of the date of grant, and have an exercise price of $6.83 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 $41,413 by the option price on the date of grant calculated in accordance with the Black-Scholes valuation model, or $2.2532 per share. The options are fully vested as of the date of grant, and have an exercise price of $6.83 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 $41,413 by the option price on the date of grant calculated in accordance with the Black-Scholes valuation model, or $2.2532 per share. The options are fully vested as of the date of grant, and have an exercise price of $6.83 per share, which is the closing price of Nabors' common shares on the date of grant.

SEC source: 0001127602-18-001190 · 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: 5,825,191

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: 0001127602-17-028963 · form4.xml · derivative · entry 1

Kotts John P · CIK 0001582064 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,079

Underlying: Common Stock · 20,079 shares

Expires 2027-09-29

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 $2.7392 per share. The options are fully vested as of the date of grant, and have an exercise price of $8.07 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 $2.7392 per share. The options are fully vested as of the date of grant, and have an exercise price of $8.07 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 $2.7392 per share. The options are fully vested as of the date of grant, and have an exercise price of $8.07 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 $2.7392 per share. The options are fully vested as of the date of grant, and have an exercise price of $8.07 per share, which is the closing price of Nabors' common shares on the date of grant.

SEC source: 0001127602-17-023068 · form4.xml · derivative · entry 1

Beder Tanya S · CIK 0001550533 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,982

Underlying: Common Stock · 2,982 shares

Expires 2027-06-30

F1 · kind: Ms. Beder voluntarily agreed to receive stock options in lieu of the quarterly cash payment she would normally receive as a Nabors director. The options vest immediately.

SEC source: 0001127602-17-023061 · form4.xml · derivative · entry 1

Kotts John P · CIK 0001582064 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,901

Underlying: Common Stock · 19,901 shares

Expires 2027-06-30

F1 · kind: Mr. Kotts voluntarily agreed to receive stock options in lieu of the quarterly cash payment he would normally receive as a Nabors director. The options vest immediately.

SEC source: 0001127602-17-023057 · form4.xml · derivative · entry 1

Skattum Dag · CIK 0001609972 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,626

Underlying: Common Stock · 15,626 shares

Expires 2027-06-30

F1 · kind: Mr. Skattum voluntarily agreed to receive stock options in lieu of the quarterly cash payment he would normally receive as a Nabors director. The options vest immediately.

SEC source: 0001127602-17-021084 · form4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,022,506

F1 · kind: Reflects the number of shares surrendered to satisfy the tax withholding on the vesting of 361,197 shares of restricted stock. The remaining shares were retained by the executive.

SEC source: 0001127602-17-020944 · form4.xml · nonDerivative · entry 1

CRANE JAMES R · CIK 0001007833 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 135,338

F1 · kind: The restricted stock award is scheduled to vest in three (3) equal annual installments beginning on the first anniversary of the date of the award, subject to accelerated vesting under certain conditions.

SEC source: 0001127602-17-020959 · form4.xml · nonDerivative · entry 1

YEARWOOD JOHN · CIK 0001381972 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 159,338

F1 · kind: The restricted stock award is scheduled to vest in three (3) equal annual installments beginning on the first anniversary of the date of the award, subject to accelerated vesting under certain conditions.

SEC source: 0001127602-17-020957 · form4.xml · nonDerivative · entry 1

Skattum Dag · CIK 0001609972 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 108,338

F1 · kind: The restricted stock award is scheduled to vest in three (3) equal annual installments beginning on the first anniversary of the date of the award, subject to accelerated vesting under certain conditions.

SEC source: 0001127602-17-020955 · form4.xml · nonDerivative · entry 1

Linn Michael C · CIK 0001349033 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 135,338

F1 · kind: The restricted stock award is scheduled to vest in three (3) equal annual installments beginning on the first anniversary of the date of the award, subject to accelerated vesting under certain conditions.

SEC source: 0001127602-17-020953 · form4.xml · nonDerivative · entry 1

Kotts John P · CIK 0001582064 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 243,338

F1 · kind: The restricted stock award is scheduled to vest in three (3) equal annual installments beginning on the first anniversary of the date of the award, subject to accelerated vesting under certain conditions.

SEC source: 0001127602-17-020942 · form4.xml · nonDerivative · entry 1

Beder Tanya S · CIK 0001550533 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,414

F1 · kind: The restricted stock award is scheduled to vest in three (3) equal annual installments beginning on the first anniversary of the date of the award, subject to accelerated vesting under certain conditions.

SEC source: 0001127602-17-020078 · form4.xml · nonDerivative · entry 2

Restrepo William J · CIK 0001334321 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 961,694

SEC source: 0001127602-17-020078 · form4.xml · nonDerivative · entry 1

Restrepo William J · CIK 0001334321 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 959,694

SEC source: 0001127602-17-017259 · form4.xml · nonDerivative · entry 1

Restrepo William J · CIK 0001334321 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 939,694

SEC source: 0001127602-17-015536 · form4.xml · nonDerivative · entry 1

Restrepo William J · CIK 0001334321 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 917,694

F1 · kind: Reflects the number of shares surrendered to satisfy the tax withholding on the vesting of 19,392 shares of restricted stock on April 24, 2017. The remaining shares were retained by the executive.

SEC source: 0001127602-17-015532 · form4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,428,749

F1 · kind: Reflects the number of shares surrendered to satisfy the tax withholding on the vesting of 174,534 shares of restricted stock. The remaining shares were retained by the executive.

SEC source: 0001127602-17-013687 · form4.xml · derivative · entry 1

Skattum Dag · CIK 0001609972 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,979

Underlying: Common Stock · 9,979 shares

Expires 2027-03-31

F1 · kind: Mr. Skattum voluntarily agreed to receive stock options in lieu of the quarterly cash payment he would normally receive as a Nabors director. The options vest immediately.

SEC source: 0001127602-17-013681 · form4.xml · derivative · entry 1

Kotts John P · CIK 0001582064 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,914

Underlying: Common Stock · 12,914 shares

Expires 2027-03-31

F1 · kind: Mr. Kotts voluntarily agreed to receive stock options in lieu of the quarterly cash payment he would normally receive as a Nabors director. The options vest immediately.

SEC source: 0001127602-17-010507 · form4.xml · nonDerivative · entry 1

Andrews Mark D · CIK 0001414596 · CORPORATE SECRETARY

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,476

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

SEC source: 0001127602-17-007505 · form4.xml · nonDerivative · entry 5

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,501,967

F5 · kind: Reflects the number of shares surrendered to satisfy the tax withholding on the vesting of 120,771 shares of restricted stock on February 21, 2017. The remaining shares were retained by the executive.

SEC source: 0001127602-17-007505 · form4.xml · nonDerivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,076,983

F4 · kind: Reflects the number of shares surrendered to satisfy the tax withholding on the vesting of 76,945 shares of restricted stock on February 20, 2017. The remaining shares were retained by the executive.

SEC source: 0001127602-17-007507 · form4.xml · nonDerivative · entry 4

Restrepo William J · CIK 0001334321 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 925,405

F4 · kind: Reflects the number of shares surrendered to satisfy the tax withholding on the vesting of 17,861 shares of restricted stock on February 20, 2017. The remaining shares were retained by the executive.

SEC source: 0001127602-17-007505 · form4.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,078,792

F3 · kind: These performance shares were earned pursuant to Mr. Petrello's employment agreement based upon the achievement of certain objectives for the year 2016 as determined by the Compensation Committee of the Board of Directors on February 17, 2017. The shares are scheduled to vest in three (3) equal annual installments beginning on the first anniversary of the date of the award.

SEC source: 0001127602-17-007505 · form4.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,697,368

F2 · kind: Reflects the number of shares surrendered to satisfy the tax withholding on the vesting of 189,123 performance shares on February 17, 2017. The remaining shares were retained by the executive.

SEC source: 0001127602-17-007505 · form4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,777,014

F1 · kind: Represents the forfeiture of performance-based shares granted to Mr. Petrello on January 1, 2014 that were eligible to vest following the end of a three-year performance period (January 1, 2014 to December 31, 2016) based on the Company's relative total shareholder return ("TSR") against a peer group of companies. Upon grant, the maximum vesting amount was reported in Table I of Form 4. Effective February 17, 2017, the Compensation Committee of the Board of Directors determined that, based on the Company's relative TSR performance over the applicable performance period, 189,123 performance shares would vest and 126,081 performance shares would be forfeited.

SEC source: 0001127602-17-007507 · form4.xml · nonDerivative · entry 3

Restrepo William J · CIK 0001334321 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 930,273

F3 · kind: Reflects the number of shares surrendered to satisfy the tax withholding on the vesting of 48,209 performance shares on February 19, 2017. The remaining shares were retained by the executive.

SEC source: 0001127602-17-007507 · form4.xml · nonDerivative · entry 2

Restrepo William J · CIK 0001334321 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 943,950

F2 · kind: These performance shares were earned pursuant to Mr. Restrepo's employment agreement based upon the achievement of certain objectives for the year 2016 as determined by the Compensation Committee of the Board of Directors on February 17, 2017. The shares are scheduled to vest in three (3) equal annual installments beginning on the first anniversary of the date of the award.

SEC source: 0001127602-17-007507 · form4.xml · nonDerivative · entry 1

Restrepo William J · CIK 0001334321 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 863,455

F1 · kind: Represents the forfeiture of performance-based shares granted to Mr. Restrepo on March 3, 2014 that were eligible to vest following the end of a three-year performance period (January 1, 2014 to December 31, 2016) based on the Company's relative total shareholder return ("TSR") against a peer group of companies. Upon grant, the maximum vesting amount was reported in Table I of Form 4. Effective February 17, 2017, the Compensation Committee of the Board of Directors determined that, based on the Company's relative TSR performance over the applicable performance period, 48,209 performance shares would vest and 32,137 performance shares would be forfeited.

SEC source: 0001127602-17-001049 · form4.xml · nonDerivative · entry 1

Restrepo William J · CIK 0001334321 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 895,592

F1 · kind: These performance shares will settle at the end of a three-year performance period (January 1, 2017 to December 31, 2019) based on the Company's relative total shareholder return against a peer group of companies. The number of shares reported represents the maximum that may be earned, which is 200% of the target number.