VAL

SEC source: 0000314808-18-000045 · wf-form4_152046051800714.xml · nonDerivative · entry 3

Brady Steven Joseph · CIK 0001557052 · Sr. VP - Eastern Hemisphere

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 330,428

F3 · shares: These shares were withheld upon vesting to enable the reporting person to satisfy tax withholding obligations that arose upon such vesting, which will be paid by the issuer to the appropriate taxing authority in cash.

SEC source: 0000314808-18-000045 · wf-form4_152046051800714.xml · nonDerivative · entry 2

Brady Steven Joseph · CIK 0001557052 · Sr. VP - Eastern Hemisphere

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 336,899

F2 · shares: Shares earned under performance unit awards for 2015-2017 performance period.

SEC source: 0000314808-18-000045 · wf-form4_152046051800714.xml · nonDerivative · entry 1

Brady Steven Joseph · CIK 0001557052 · Sr. VP - Eastern Hemisphere

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 323,233

F1 · shares: On March 5, 2018, the reporting person was granted 144,540 restricted shares, vesting in three equal annual installments beginning on the first anniversary of the grant date.

SEC source: 0000314808-18-000046 · wf-form4_152046054289212.xml · derivative · entry 3

McGuinty Michael · CIK 0001666008 · SVP-General Counsel/Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 128,481

Underlying: Class A Ordinary Shares · 128,481 shares

Expires not disclosed

F3 · derivative.exercise_price: Upon the vesting of our restricted share units, the reporting person is required to pay the aggregate nominal value (par value), $0.10 per share, of our Class A ordinary shares actually issued, in accordance with U.K. corporate law.

F4 · derivative.exercise_date: On March 5, 2018, the reporting person was granted 128,481 restricted share units, vesting in three equal installments beginning on the first anniversary date of the grant date.

F4 · derivative.expiration_date: On March 5, 2018, the reporting person was granted 128,481 restricted share units, vesting in three equal installments beginning on the first anniversary date of the grant date.

SEC source: 0000314808-18-000044 · wf-form4_152046049972206.xml · derivative · entry 3

Baksht Jonathan · CIK 0001658406 · Senior Vice President & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 144,540

Underlying: Class A Ordinary Shares · 144,540 shares

Expires not disclosed

F3 · derivative.exercise_price: Upon the vesting of our restricted share units, the reporting person is required to pay the aggregate nominal value (par value), $0.10 per share, of our Class A ordinary shares actually issued, in accordance with U.K. corporate law.

F4 · derivative.exercise_date: On March 5, 2018, the reporting person was granted 144,540 restricted share units, vesting in three equal annual installments beginning on the first anniversary of the grant date.

F4 · derivative.expiration_date: On March 5, 2018, the reporting person was granted 144,540 restricted share units, vesting in three equal annual installments beginning on the first anniversary of the grant date.

SEC source: 0000314808-18-000043 · wf-form4_152046048314235.xml · nonDerivative · entry 3

Knowlton John Stokes · CIK 0001495170 · Sr. Vice President - Technical

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 279,149

F3 · shares: These shares were withheld upon vesting to enable the reporting person to satisfy tax withholding obligations that arose upon such vesting, which will be paid by the issuer to the appropriate taxing authority in cash.

SEC source: 0000314808-18-000043 · wf-form4_152046048314235.xml · nonDerivative · entry 2

Knowlton John Stokes · CIK 0001495170 · Sr. Vice President - Technical

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 282,746

F2 · shares: Shares earned under performance unit awards for 2015-2017 performance period.

SEC source: 0000314808-18-000043 · wf-form4_152046048314235.xml · nonDerivative · entry 1

Knowlton John Stokes · CIK 0001495170 · Sr. Vice President - Technical

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 270,599

F1 · shares: On March 5, 2018, the reporting person was granted 128,481 restricted shares, vesting in three equal annual installments beginning on the first anniversary of the grant date.

SEC source: 0000314808-18-000035 · wf-form4_152028467253779.xml · nonDerivative · entry 3

Knowlton John Stokes · CIK 0001495170 · Sr. Vice President - Technical

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 142,118

F3 · shares: The reporting person disposed of these shares to an affiliate of the issuer upon the vesting of previously awarded restricted shares. The purpose of the disposition was to enable the reporting person to satisfy tax withholding obligations that arose upon such vesting, which will be paid to the appropriate taxing authority in cash.

SEC source: 0000314808-18-000034 · wf-form4_152028465622354.xml · nonDerivative · entry 2

Lowe Patrick Carey · CIK 0001443266 · EVP & Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 351,480

F1 · shares: The reporting person disposed of these shares to an affiliate of the issuer upon the vesting of previously awarded restricted shares. The purpose of the disposition was to enable the reporting person to satisfy tax withholding obligations that arose upon such vesting, which will be paid to the appropriate taxing authority in cash.

SEC source: 0000314808-18-000033 · wf-form4_152028463252881.xml · nonDerivative · entry 2

Trowell Carl · CIK 0001608903 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 540,183

F1 · shares: The reporting person disposed of these shares to an affiliate of the issuer upon the vesting of previously awarded restricted shares. The purpose of the disposition was to enable the reporting person to satisfy tax withholding obligations that arose upon such vesting, which will be paid to the appropriate taxing authority in cash.

SEC source: 0000314808-18-000032 · wf-form4_152028461661037.xml · derivative · entry 6

McGuinty Michael · CIK 0001666008 · SVP-General Counsel/Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,299

Underlying: Class A Ordinary Shares · 18,299 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: Upon the vesting of our restricted share units, the reporting person is required to pay the aggregate nominal value (par value), $0.10 per share, of our Class A ordinary shares actually issued, in accordance with U.K. corporate law. In connection with the transaction reported above, the reporting person paid $969.80 to Ensco plc with respect to the shares actually issued upon vesting of the restricted share units. The remaining 8,601 shares were withheld and not issued to satisfy certain tax withholding obligations.

F5 · derivative.exercise_date: On March 3, 2016, the reporting person was granted 54,897 restricted share units, vesting in three equal annual installments beginning on the first anniversary of the grant date.

F5 · derivative.expiration_date: On March 3, 2016, the reporting person was granted 54,897 restricted share units, vesting in three equal annual installments beginning on the first anniversary of the grant date.

SEC source: 0000314808-18-000032 · wf-form4_152028461661037.xml · nonDerivative · entry 4

McGuinty Michael · CIK 0001666008 · SVP-General Counsel/Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 39,388

F2 · shares: The reporting person disposed of these shares to an affiliate of the issuer upon the vesting of previously awarded restricted shares. The purpose of the disposition was to enable the reporting person to satisfy tax withholding obligations that arose upon such vesting, which will be paid to the appropriate taxing authority in cash.

SEC source: 0000314808-18-000032 · wf-form4_152028461661037.xml · nonDerivative · entry 3

McGuinty Michael · CIK 0001666008 · SVP-General Counsel/Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,989

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · price: Upon the vesting of our restricted share units, the reporting person is required to pay the aggregate nominal value (par value), $0.10 per share, of our Class A ordinary shares actually issued, in accordance with U.K. corporate law. In connection with the transaction reported above, the reporting person paid $969.80 to Ensco plc with respect to the shares actually issued upon vesting of the restricted share units. The remaining 8,601 shares were withheld and not issued to satisfy certain tax withholding obligations.

SEC source: 0000314808-18-000031 · wf-form4_152028460046713.xml · nonDerivative · entry 3

Luca Gilles · CIK 0001626810 · Sr. VP - Western Hemisphere

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 182,069

F3 · shares: The reporting person disposed of these shares to an affiliate of the issuer upon the vesting of previously awarded restricted shares. The purpose of the disposition was to enable the reporting person to satisfy tax withholding obligations that arose upon such vesting, which will be paid to the appropriate taxing authority in cash.

SEC source: 0000314808-18-000030 · wf-form4_152028458137286.xml · nonDerivative · entry 2

Brady Steven Joseph · CIK 0001557052 · Sr. VP - Eastern Hemisphere

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 178,693

F1 · shares: The reporting person disposed of these shares to an affiliate of the issuer upon the vesting of previously awarded restricted shares. The purpose of the disposition was to enable the reporting person to satisfy tax withholding obligations that arose upon such vesting, which will be paid to the appropriate taxing authority in cash.

SEC source: 0000314808-18-000028 · wf-form4_152028452625981.xml · derivative · entry 3

Baksht Jonathan · CIK 0001658406 · Senior Vice President & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,299

Underlying: Class A Ordinary Shares · 18,299 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Upon the vesting of our restricted share units, the reporting person is required to pay the aggregate nominal value (par value), $0.10 per share, of our Class A ordinary shares actually issued, in accordance with U.K. corporate law. In connection with the transaction reported above, the reporting person paid $1,071.20 to Ensco plc with respect to the shares actually issued upon vesting of the restricted share units. The remaining 7,587 shares were withheld and not issued to satisfy certain tax withholding obligations.

F3 · derivative.exercise_date: On March 3, 2016, the reporting person was granted 54,897 restricted share units, vesting in three equal annual installments beginning on the first anniversary of the grant date.

F3 · derivative.expiration_date: On March 3, 2016, the reporting person was granted 54,897 restricted share units, vesting in three equal annual installments beginning on the first anniversary of the grant date.

SEC source: 0000314808-18-000028 · wf-form4_152028452625981.xml · nonDerivative · entry 2

Baksht Jonathan · CIK 0001658406 · Senior Vice President & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 72,746

F2 · shares: These shares were withheld to satisfy tax withholding obligations that arose upon vesting.

SEC source: 0000314808-18-000028 · wf-form4_152028452625981.xml · nonDerivative · entry 1

Baksht Jonathan · CIK 0001658406 · Senior Vice President & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 80,333

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Upon the vesting of our restricted share units, the reporting person is required to pay the aggregate nominal value (par value), $0.10 per share, of our Class A ordinary shares actually issued, in accordance with U.K. corporate law. In connection with the transaction reported above, the reporting person paid $1,071.20 to Ensco plc with respect to the shares actually issued upon vesting of the restricted share units. The remaining 7,587 shares were withheld and not issued to satisfy certain tax withholding obligations.

SEC source: 0000314808-18-000035 · wf-form4_152028467253779.xml · derivative · entry 5

Knowlton John Stokes · CIK 0001495170 · Sr. Vice President - Technical

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Ordinary Shares · 6,981 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Upon the vesting of our restricted share units, the reporting person is required to pay the aggregate nominal value (par value), $0.10 per share, of our Class A ordinary shares actually issued, in accordance with U.K. corporate law. In connection with the transaction reported above, the reporting person paid $491.30 to Ensco plc with respect to the shares actually issued upon vesting of the restricted share units. The remaining 2,068 shares were withheld and not issued to satisfy certain tax withholding obligations.

F4 · derivative.exercise_date: On February 23, 2015, the reporting person was granted 20,943 restricted share units, vesting in three equal annual installments beginning on the first anniversary of the grant date.

F4 · derivative.expiration_date: On February 23, 2015, the reporting person was granted 20,943 restricted share units, vesting in three equal annual installments beginning on the first anniversary of the grant date.

SEC source: 0000314808-18-000035 · wf-form4_152028467253779.xml · nonDerivative · entry 2

Knowlton John Stokes · CIK 0001495170 · Sr. Vice President - Technical

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 147,539

F2 · shares: These shares were withheld to satisfy tax withholding obligations that arose upon vesting.

SEC source: 0000314808-18-000035 · wf-form4_152028467253779.xml · nonDerivative · entry 1

Knowlton John Stokes · CIK 0001495170 · Sr. Vice President - Technical

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 149,607

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Upon the vesting of our restricted share units, the reporting person is required to pay the aggregate nominal value (par value), $0.10 per share, of our Class A ordinary shares actually issued, in accordance with U.K. corporate law. In connection with the transaction reported above, the reporting person paid $491.30 to Ensco plc with respect to the shares actually issued upon vesting of the restricted share units. The remaining 2,068 shares were withheld and not issued to satisfy certain tax withholding obligations.

SEC source: 0000314808-18-000034 · wf-form4_152028465622354.xml · nonDerivative · entry 1

Lowe Patrick Carey · CIK 0001443266 · EVP & Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 362,765

F1 · shares: The reporting person disposed of these shares to an affiliate of the issuer upon the vesting of previously awarded restricted shares. The purpose of the disposition was to enable the reporting person to satisfy tax withholding obligations that arose upon such vesting, which will be paid to the appropriate taxing authority in cash.

SEC source: 0000314808-18-000033 · wf-form4_152028463252881.xml · nonDerivative · entry 1

Trowell Carl · CIK 0001608903 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 576,018

F1 · shares: The reporting person disposed of these shares to an affiliate of the issuer upon the vesting of previously awarded restricted shares. The purpose of the disposition was to enable the reporting person to satisfy tax withholding obligations that arose upon such vesting, which will be paid to the appropriate taxing authority in cash.

SEC source: 0000314808-18-000032 · wf-form4_152028461661037.xml · derivative · entry 5

McGuinty Michael · CIK 0001666008 · SVP-General Counsel/Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,861

Underlying: Class A Ordinary Shares · 18,861 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Upon the vesting of our restricted share units, the reporting person is required to pay the aggregate nominal value (par value), $0.10 per share, of our Class A ordinary shares actually issued, in accordance with U.K. corporate law. In connection with the transaction reported above, the reporting person paid $999.60 to Ensco plc with respect to the shares actually issued upon vesting of the restricted share units. The remaining 8,865 shares were withheld and not issued to satisfy certain tax withholding obligations.

F4 · derivative.exercise_date: On March 1, 2016, the reporting person was granted 56,583 restricted share units, vesting in three equal annual installments beginning on the first anniversary of the grant date.

F4 · derivative.expiration_date: On March 1, 2016, the reporting person was granted 56,583 restricted share units, vesting in three equal annual installments beginning on the first anniversary of the grant date.

SEC source: 0000314808-18-000032 · wf-form4_152028461661037.xml · nonDerivative · entry 2

McGuinty Michael · CIK 0001666008 · SVP-General Counsel/Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,690

F2 · shares: The reporting person disposed of these shares to an affiliate of the issuer upon the vesting of previously awarded restricted shares. The purpose of the disposition was to enable the reporting person to satisfy tax withholding obligations that arose upon such vesting, which will be paid to the appropriate taxing authority in cash.

SEC source: 0000314808-18-000032 · wf-form4_152028461661037.xml · nonDerivative · entry 1

McGuinty Michael · CIK 0001666008 · SVP-General Counsel/Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 38,555

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Upon the vesting of our restricted share units, the reporting person is required to pay the aggregate nominal value (par value), $0.10 per share, of our Class A ordinary shares actually issued, in accordance with U.K. corporate law. In connection with the transaction reported above, the reporting person paid $999.60 to Ensco plc with respect to the shares actually issued upon vesting of the restricted share units. The remaining 8,865 shares were withheld and not issued to satisfy certain tax withholding obligations.

SEC source: 0000314808-18-000031 · wf-form4_152028460046713.xml · derivative · entry 5

Luca Gilles · CIK 0001626810 · Sr. VP - Western Hemisphere

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Ordinary Shares · 6,981 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Upon the vesting of our restricted share units, the reporting person is required to pay the aggregate nominal value (par value), $0.10 per share, of our Class A ordinary shares actually issued, in accordance with U.K. corporate law. In connection with the transaction reported above, the reporting person paid $544.50 to Ensco plc with respect to the shares actually issued upon vesting of the restricted share units. The remaining 1,536 shares were withheld and not issued to satisfy certain tax withholding obligations.

F4 · derivative.exercise_date: On February 23, 2015, the reporting person was granted 20,943 restricted share units, vesting in three equal annual installments beginning on the first anniversary of the grant date.

F4 · derivative.expiration_date: On February 23, 2015, the reporting person was granted 20,943 restricted share units, vesting in three equal annual installments beginning on the first anniversary of the grant date.

SEC source: 0000314808-18-000031 · wf-form4_152028460046713.xml · nonDerivative · entry 2

Luca Gilles · CIK 0001626810 · Sr. VP - Western Hemisphere

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 186,598

F2 · shares: These shares were withheld to satisfy tax withholding obligations that arose upon vesting.

SEC source: 0000314808-18-000031 · wf-form4_152028460046713.xml · nonDerivative · entry 1

Luca Gilles · CIK 0001626810 · Sr. VP - Western Hemisphere

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 188,134

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Upon the vesting of our restricted share units, the reporting person is required to pay the aggregate nominal value (par value), $0.10 per share, of our Class A ordinary shares actually issued, in accordance with U.K. corporate law. In connection with the transaction reported above, the reporting person paid $544.50 to Ensco plc with respect to the shares actually issued upon vesting of the restricted share units. The remaining 1,536 shares were withheld and not issued to satisfy certain tax withholding obligations.

SEC source: 0000314808-18-000030 · wf-form4_152028458137286.xml · nonDerivative · entry 1

Brady Steven Joseph · CIK 0001557052 · Sr. VP - Eastern Hemisphere

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 188,441

F1 · shares: The reporting person disposed of these shares to an affiliate of the issuer upon the vesting of previously awarded restricted shares. The purpose of the disposition was to enable the reporting person to satisfy tax withholding obligations that arose upon such vesting, which will be paid to the appropriate taxing authority in cash.

SEC source: 0000314808-18-000029 · wf-form4_152028455256924.xml · nonDerivative · entry 1

Darby Tommy · CIK 0001719757 · Controller

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,956

F1 · shares: The reporting person disposed of these shares to an affiliate of the issuer upon the vesting of previously awarded restricted shares. The purpose of the disposition was to enable the reporting person to satisfy tax withholding obligations that arose upon such vesting, which will be paid to the appropriate taxing authority in cash.

SEC source: 0000314808-17-000162 · wf-form4_151311407005469.xml · derivative · entry 3

Baksht Jonathan · CIK 0001658406 · Senior Vice President & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,134

Underlying: Class A Ordinary Shares · 1,067 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Upon the vesting of our restricted share units, the reporting person is required to pay the aggregate nominal value (par value), $0.10 per share, of our Class A ordinary shares actually issued, in accordance with U.K. corporate law. In connection with the transaction reported above, the reporting person paid $56.30 to Ensco plc with respect to the shares actually issued upon vesting of the restricted share units. The remaining 504 shares were withheld and not issued to satisfy certain tax withholding obligations.

F3 · derivative.exercise_date: On December 10, 2014, the reporting person was granted 5,335 restricted share units, vesting in five equal annual installments beginning on the first anniversary of the grant date.

F3 · derivative.expiration_date: On December 10, 2014, the reporting person was granted 5,335 restricted share units, vesting in five equal annual installments beginning on the first anniversary of the grant date.

SEC source: 0000314808-17-000162 · wf-form4_151311407005469.xml · nonDerivative · entry 2

Baksht Jonathan · CIK 0001658406 · Senior Vice President & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 62,034

F2 · shares: These shares were withheld to satisfy tax withholding obligations that arose upon vesting.

SEC source: 0000314808-17-000162 · wf-form4_151311407005469.xml · nonDerivative · entry 1

Baksht Jonathan · CIK 0001658406 · Senior Vice President & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 62,538

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Upon the vesting of our restricted share units, the reporting person is required to pay the aggregate nominal value (par value), $0.10 per share, of our Class A ordinary shares actually issued, in accordance with U.K. corporate law. In connection with the transaction reported above, the reporting person paid $56.30 to Ensco plc with respect to the shares actually issued upon vesting of the restricted share units. The remaining 504 shares were withheld and not issued to satisfy certain tax withholding obligations.

SEC source: 0000314808-17-000160 · wf-form4_151251009550328.xml · nonDerivative · entry 1

Darby Tommy · CIK 0001719757 · Controller

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,051

F1 · shares: The reporting person disposed of these shares to an affiliate of the issuer upon the vesting of previously awarded restricted shares. The purpose of the disposition was to enable the reporting person to satisfy tax withholding obligations that arose upon such vesting, which will be paid to the appropriate taxing authority in cash.

SEC source: 0000314808-17-000158 · wf-form4_151250991280446.xml · nonDerivative · entry 1

Brady Steven Joseph · CIK 0001557052 · Sr. VP - Eastern Hemisphere

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 192,160

F1 · shares: The reporting person disposed of these shares to an affiliate of the issuer upon the vesting of previously awarded restricted shares. The purpose of the disposition was to enable the reporting person to satisfy tax withholding obligations that arose upon such vesting, which will be paid to the appropriate taxing authority in cash.

SEC source: 0000314808-17-000156 · wf-form4_151250971559211.xml · derivative · entry 4

Luca Gilles · CIK 0001626810 · Sr. VP - Western Hemisphere

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Ordinary Shares · 1,487 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Upon the vesting of our restricted share units, the reporting person is required to pay the aggregate nominal value (par value), $0.10 per share, of our Class A ordinary shares actually issued, in accordance with U.K. corporate law. In connection with the transaction reported above, the reporting person paid $115.90 to Ensco plc with respect to the shares actually issued upon vesting of the restricted share units. The remaining 328 shares were withheld and not issued to satisfy certain tax withholding obligations.

F3 · derivative.exercise_date: On December 1, 2014, the reporting person was granted 4,460 restricted share units, vesting in three equal annual installments beginning on the first anniversary of the grant date.

F3 · derivative.expiration_date: On December 1, 2014, the reporting person was granted 4,460 restricted share units, vesting in three equal annual installments beginning on the first anniversary of the grant date.

SEC source: 0000314808-17-000156 · wf-form4_151250971559211.xml · nonDerivative · entry 2

Luca Gilles · CIK 0001626810 · Sr. VP - Western Hemisphere

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 181,153

F2 · shares: These shares were withheld to satisfy tax withholding obligations that arose upon vesting.

SEC source: 0000314808-17-000156 · wf-form4_151250971559211.xml · nonDerivative · entry 1

Luca Gilles · CIK 0001626810 · Sr. VP - Western Hemisphere

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 181,481

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Upon the vesting of our restricted share units, the reporting person is required to pay the aggregate nominal value (par value), $0.10 per share, of our Class A ordinary shares actually issued, in accordance with U.K. corporate law. In connection with the transaction reported above, the reporting person paid $115.90 to Ensco plc with respect to the shares actually issued upon vesting of the restricted share units. The remaining 328 shares were withheld and not issued to satisfy certain tax withholding obligations.

SEC source: 0000314808-17-000154 · wf-form4_151121439407505.xml · nonDerivative · entry 1

Baksht Jonathan · CIK 0001658406 · Senior Vice President & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 61,471

F1 · shares: The reporting person disposed of these shares to an affiliate of the issuer upon the vesting of previously awarded restricted shares. The purpose of the disposition was to enable the reporting person to satisfy tax withholding obligations that arose upon such vesting, which will be paid to the appropriate taxing authority in cash.

SEC source: 0000314808-17-000152 · wf-form4_151009110496347.xml · nonDerivative · entry 1

Lowe Patrick Carey · CIK 0001443266 · EVP & Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 366,425

F1 · shares: The reporting person disposed of these shares to an affiliate of the issuer upon the vesting of previously awarded restricted shares. The purpose of the disposition was to enable the reporting person to satisfy tax withholding obligations that arose upon such vesting, which will be paid by the issuer to the Internal Revenue Service in cash.

SEC source: 0000314808-17-000150 · wf-form4_150974138852063.xml · derivative · entry 1

WEDEMEYER PHIL D · CIK 0001229159 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,799

Underlying: Class A Ordinary Shares · 23,799 shares

Expires not disclosed

F1 · derivative.exercise_price: Upon the vesting of our restricted share units, the reporting person is required to pay the aggregate nominal value (par value), $0.10 per share, of our Class A ordinary shares actually issued, in accordance with U.K. corporate law.

F2 · derivative.exercise_date: The restricted share units vest in three equal annual installments.

F2 · derivative.expiration_date: The restricted share units vest in three equal annual installments.

SEC source: 0000314808-17-000149 · wf-form4_150974137247874.xml · derivative · entry 1

Golden Jack E · CIK 0001471594 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,799

Underlying: Class A Ordinary Shares · 23,799 shares

Expires not disclosed

F1 · derivative.exercise_price: Upon the vesting of our restricted share units, the reporting person is required to pay the aggregate nominal value (par value), $0.10 per share, of our Class A ordinary shares actually issued, in accordance with U.K. corporate law.

F2 · derivative.exercise_date: The restricted share units vest in three equal annual installments.

F2 · derivative.expiration_date: The restricted share units vest in three equal annual installments.

SEC source: 0000314808-17-000146 · wf-form4_150965528901822.xml · nonDerivative · entry 1

Darby Tommy · CIK 0001719757 · Controller

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,127

F1 · shares: The reporting person disposed of these shares to an affiliate of the issuer upon the vesting of previously awarded restricted shares. The purpose of the disposition was to enable the reporting person to satisfy tax withholding obligations that arose upon such vesting, which will be paid by the issuer to the Internal Revenue Service in cash.

SEC source: 0000314808-17-000128 · wf-form4_150732200188333.xml · nonDerivative · entry 1

WEDEMEYER PHIL D · CIK 0001229159 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 71,023

F1 · kind: Pursuant to the Agreement and Plan of Merger dated as of May 29, 2017 by and among the Issuer, Atwood Oceanics, Inc. ("Atwood") and Echo Merger Sub LLC ("Merger Sub"), Merger Sub merged with and into Atwood, with Atwood continuing as the surviving company and becoming a wholly owned subsidiary of the Issuer. At the effective time of the merger, each share of Atwood common stock issued and outstanding immediately prior to such time was converted into the right to receive 1.60 shares of the Issuer's common stock. On the trading day immediately prior to the effective time, the closing price of the Issuer's common stock was $5.83 per share and the closing price of Atwood common stock was $9.32 per share.

SEC source: 0000314808-17-000126 · wf-form4_150732162746034.xml · nonDerivative · entry 1

Golden Jack E · CIK 0001471594 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 77,500

F1 · kind: Pursuant to the Agreement and Plan of Merger dated as of May 29, 2017 by and among the Issuer, Atwood Oceanics, Inc. ("Atwood") and Echo Merger Sub LLC ("Merger Sub"), Merger Sub merged with and into Atwood, with Atwood continuing as the surviving company and becoming a wholly owned subsidiary of the Issuer. On the trading day immediately prior to the effective time, the closing price of the Issuer's common stock was $5.83 per share and the closing price of Atwood common stock was $9.32 per share.

SEC source: 0000314808-17-000117 · wf-form4_150473218834067.xml · nonDerivative · entry 1

Baksht Jonathan · CIK 0001658406 · Senior Vice President & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 65,475

F1 · shares: The reporting person disposed of these shares to an affiliate of the issuer upon the vesting of previously awarded restricted shares. The purpose of the disposition was to enable the reporting person to satisfy tax withholding obligations that arose upon such vesting, which will be paid by the issuer to the Internal Revenue Service in cash.

SEC source: 0000314808-17-000091 · wf-form4_149670240260583.xml · nonDerivative · entry 5

Edwards Robert W III · CIK 0001561204 · Vice President - Finance

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,532

F2 · shares: These shares were withheld to satisfy tax withholding obligations that arose upon vesting of restricted shares.

SEC source: 0000314808-17-000083 · wf-form4_149670109953407.xml · nonDerivative · entry 3

Luca Gilles · CIK 0001626810 · Sr. VP - Western Hemisphere

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 179,994

F1 · shares: The reporting person disposed of these shares to an affiliate of the issuer upon the vesting of previously awarded restricted shares. The purpose of the disposition was to enable the reporting person to satisfy tax withholding obligations that arose upon such vesting, which will be paid by the issuer to the Internal Revenue Service in cash.