ATWOOD OCEANICS INC Contracts & Agreements

AGREEMENT AND PLAN OF MERGER by and among ENSCO PLC, ECHO MERGERSUB LLC and ATWOOD OCEANICS, INC. Dated as of May 29, 2017 TABLE OF CONTENTS (Filed With SEC on May 30, 2017)

ATWOOD OCEANICS, INC. 13,500,000 Shares Common Stock (par value$1.00 per share) UNDERWRITING AGREEMENT (Filed With SEC on January 13, 2017)

Supplemental Agreement No. 5 Dated Effective as of 5 December 2016 To DRILLSHIP CONTRACT dated 27 September, 2012 By and between ALPHA ADMIRALCOMPANY (the BUYER) and DAEWOO... (Filed With SEC on December 6, 2016)

Supplemental Agreement No. 5 Dated Effective as of 5 December 2016 To DRILLSHIP CONTRACT dated 24 June 2013 By and between ALPHA ARCHERCOMPANY (the BUYER) and DAEWOO SHIPBUILDING... (Filed With SEC on December 6, 2016)

ATWOOD OCEANICS, INC. 2013 LONG-TERM INCENTIVE PLAN TERMS AND CONDITIONS OF PERFORMANCE UNIT GRANT (Filed With SEC on November 22, 2016)

ATWOOD OCEANICS, INC. 2013 LONG-TERM INCENTIVE PLAN TERMS AND CONDITIONS OF RESTRICTED STOCK UNIT AWARD (Filed With SEC on November 22, 2016)

ATWOOD OCEANICS, INC. 2013 LONG-TERM INCENTIVE PLAN TERMS AND CONDITIONS OF CASH-SETTLED PERFORMANCE UNIT GRANT (Filed With SEC on November 22, 2016)

ATWOOD OCEANICS, INC. 2013 LONG-TERM INCENTIVE PLAN TERMS AND CONDITIONS OF CASH-SETTLED RESTRICTED STOCK UNIT AWARD (Filed With SEC on November 22, 2016)

ATWOOD OCEANICS, INC. 2013 LONG-TERM INCENTIVE PLAN TERMS AND CONDITIONS OF NON-EMPLOYEE DIRECTOR RESTRICTED STOCK UNIT AWARD (Filed With SEC on November 22, 2016)

NON-COMPETITION AND NON-SOLICITATION AGREEMENT (Filed With SEC on May 27, 2016)

SECOND AMENDMENT TO ATWOOD OCEANICS, INC. 2013 LONG-TERM INCENTIVE PLAN (Filed With SEC on May 27, 2016)

FOURTHAMENDMENT TO AMENDED AND RESTATED CREDIT AGREEMENT (Filed With SEC on March 29, 2016)

Supplemental Agreement No. 4 Dated Effective as of 17 December 2015 To DRILLSHIP CONTRACT dated 27 September, 2012 By and between ALPHA ADMIRAL COMPANY (the Buyer) and DAEWOO... (Filed With SEC on December 18, 2015)

Supplemental Agreement No. 4 Dated Effective as of 17 December 2015 To DRILLSHIP CONTRACT dated 24 June 2013 By and between ALPHA ARCHER COMPANY (the Buyer) and DAEWOO... (Filed With SEC on December 18, 2015)

THIRD AMENDMENT TO AMENDED AND RESTATED CREDIT AGREEMENT (Filed With SEC on November 12, 2015)

CONTINUING LETTER OF CREDIT AGREEMENT(UNCOMMITTED) (Filed With SEC on November 12, 2015)

Supplemental Agreement No.2 Dated Effective as of 6 February 2015 To DRILLSHIP CONTRACT dated 27 September, 2012 By and between ALPHA ADMIRAL COMPANY (the Buyer) and DAEWOO... (Filed With SEC on April 30, 2015)

Supplemental Agreement No. 2 Dated Effective as of 6 February 2015 To DRILLSHIP CONTRACT dated 24 June 2013 By and between ALPHA ARCHER COMPANY (the Buyer) and DAEWOO SHIPBUILDING... (Filed With SEC on April 30, 2015)

SECOND AMENDMENT TO AMENDED AND RESTATED CREDIT AGREEMENT (Filed With SEC on March 6, 2015)

FIRST AMENDMENT TO AMENDED AND RESTATED CREDIT AGREEMENT (Filed With SEC on February 5, 2015)

Supplemental Agreement No. 1 Dated 1 November 2014 To DRILLSHIP CONTRACT dated 27 September, 2012 By and between ALPHA ADMIRAL COMPANY (the Buyer) and DAEWOO SHIPBUILDING & MARINE... (Filed With SEC on February 5, 2015)

Supplemental Agreement No. 1 Dated 1 November 2014 To DRILLSHIP CONTRACT dated 24 June 2013 By and between ALPHA ARCHER COMPANY (the Buyer) and DAEWOO SHIPBUILDING & MARINE... (Filed With SEC on February 5, 2015)

FIRST AMENDMENT TO EXECUTIVE CHANGE OF CONTROL AGREEMENT (Filed With SEC on January 2, 2015)

RESTATEMENTAGREEMENT (Filed With SEC on April 11, 2014)

AMENDED AND RESTATED CREDIT AGREEMENT among ATWOOD OCEANICS,INC., ATWOOD OFFSHORE WORLDWIDE LIMITED, VARIOUS LENDERS and NORDEA BANK FINLAND PLC, LONDON BRANCH, as Administrative... (Filed With SEC on April 11, 2014)

SECOND AMENDMENT TO ATWOOD OCEANICS, INC. AMENDED AND RESTATED 2007 LONG-TERM INCENTIVE PLAN (Filed With SEC on February 6, 2014)

ATWOOD OCEANICS, INC. 2013 LONG-TERM INCENTIVE PLAN TERMS AND CONDITIONS OF NON-EMPLOYEE DIRECTOR RESTRICTED STOCK UNIT AWARD (Filed With SEC on February 6, 2014)

ATWOOD OCEANICS, INC. 2013 LONG-TERM INCENTIVE PLAN TERMS AND CONDITIONS OF PERFORMANCE UNIT GRANT (Filed With SEC on February 6, 2014)

ATWOOD OCEANICS, INC. 2013 LONG-TERM INCENTIVE PLAN TERMS AND CONDITIONS OF NON-EMPLOYEE DIRECTOR RESTRICTED STOCK UNIT AWARD (Filed With SEC on February 6, 2014)

FOURTH AMENDMENT TO CREDIT AGREEMENT (Filed With SEC on July 25, 2013)

INCREMENTAL COMMITMENT AGREEMENT NORDEA BANK FINLAND PLC, NEW YORKBRANCH 437 Madison Avenue, 21st Floor New York, New York 10022 (Filed With SEC on July 25, 2013)

$200,000,000 ATWOOD OCEANICS, INC. 6.50% Senior Notes due 2020 UNDERWRITING AGREEMENT (Filed With SEC on June 20, 2013)

FIRST AMENDMENT TO STOCK PURCHASE AGREEMENT (Filed With SEC on June 17, 2013)

STOCK PURCHASE AGREEMENT (Filed With SEC on May 30, 2013)

ATWOOD OCEANICS, INC AMENDED AND RESTATED 2007 NONEMPLOYEE DIRECTORS ELECTIVE DEFERRED COMPENSATION PLAN (as amended and restated effective March 7, 2013) (Filed With SEC on May 3, 2013)

ATWOOD OCEANICS BENEFIT EQUALIZATION PLAN (Amended and Restated Effective as of January1, 2013) TABLE OF CONTENTS PageARTICLE 1 DEFINITIONS41.1Account41.2Active Member51.3Adjusted... (Filed With SEC on February 1, 2013)

CONTRACT FOR THE CONSTRUCTION AND SALE OF DRILLSHIP BY AND BETWEEN ALPHA ADMIRAL COMPANY AS BUYER AND DAEWOO SHIPBUILDING & MARINE ENGINEERING CO., LTD. AS BUILDER I N D E X (Filed With SEC on November 19, 2012)

RETIREMENT AND SEPARATION AGREEMENT (Filed With SEC on September 28, 2012)

THIRD AMENDMENT TO CREDIT AGREEMENT (Filed With SEC on August 28, 2012)

EXECUTIVE CHANGE OF CONTROL AGREEMENT (Filed With SEC on May 30, 2012)

ATWOOD OCEANICS, INC. SALARY CONTINUATION PLAN (Formerly the RestatedExecutive Life Insurance Plan) FIRST AMENDMENT (Filed With SEC on May 30, 2012)

[ATWOOD OCEANICS, INC. LETTERHEAD] (Filed With SEC on May 30, 2012)

ATWOOD OCEANICS, INC. INDEMNIFICATION AGREEMENT (Filed With SEC on May 4, 2012)

ATWOOD OCEANICS, INC. RESTRICTED STOCK AWARD AGREEMENT 2007 LONG-TERM INCENTIVE PLAN (Filed With SEC on May 4, 2012)

ATWOOD OCEANICS, INC. RESTRICTED STOCK AWARD AMENDED AND RESTATED AGREEMENT 2007 LONG-TERM INCENTIVE PLAN (Filed With SEC on May 4, 2012)

Clarifying Amendment Restricted Stock Award 2007 Long-Term Incentive Plan (Filed With SEC on May 4, 2012)

ATWOOD OCEANICS, INC. RESTRICTED STOCK AWARD AGREEMENT 2007 LONG-TERM INCENTIVE PLAN (Filed With SEC on May 4, 2012)

ATWOOD OCEANICS, INC. RESTRICTED STOCK AWARD AMENDED AND RESTATED AGREEMENT 2007 LONG-TERM INCENTIVE PLAN (Filed With SEC on May 4, 2012)

Clarifying Amendment Restricted Stock Award 2007 Long-Term Incentive Plan (Filed With SEC on May 4, 2012)

ATWOOD OCEANICS, INC. (Filed With SEC on February 6, 2012)

ATWOOD OCEANICS, INC. 6.50% SENIOR NOTES DUE 2020 FIRSTSUPPLEMENTAL INDENTURE Dated as of January 18, 2012 to INDENTURE Dated as of January 18, 2012 WELLS FARGOBANK, NATIONAL... (Filed With SEC on February 6, 2012)

SECOND AMENDMENT TO CREDIT AGREEMENT (Filed With SEC on February 6, 2012)

FIRST AMENDMENT TO ATWOOD OCEANICS, INC. AMENDED AND RESTATED 2007 LONG-TERM INCENTIVE PLAN (Filed With SEC on February 6, 2012)

Page 1 of 5 (Filed With SEC on February 6, 2012)

ATWOOD OCEANICS, INC. RETENTION PLAN FOR CERTAIN SALARIED EMPLOYEES Effective as of January 1, 2012 This Plan will terminate automatically as of December 31, 2012 ifthere is no... (Filed With SEC on February 6, 2012)

$450,000,000 ATWOOD OCEANICS, INC. 6.50% Senior Notes due 2020 UNDERWRITING AGREEMENT (Filed With SEC on January 18, 2012)

ATWOOD OCEANICS, INC. 6.50% SENIOR NOTES DUE 2020 FIRSTSUPPLEMENTAL INDENTURE Dated as of January 18, 2012 to INDENTURE Dated as of January 18, 2012 WELLS FARGO BANK,NATIONAL... (Filed With SEC on January 18, 2012)

FIRST AMENDMENT TO CREDIT AGREEMENT (Filed With SEC on January 18, 2012)

ATWOOD OCEANICS, INC. RESTATED EXECUTIVE LIFE INSURANCE PLAN (Filed With SEC on November 22, 2011)

ATWOOD OCEANICS BENEFIT EQUALIZATION PLAN TABLE OF CONTENTS (Filed With SEC on November 22, 2011)

FIRST AMENDMENT TO ATWOOD OCEANICS BENEFIT EQUALIZATION PLAN (Filed With SEC on November 22, 2011)

SECOND AMENDMENT TO ATWOOD OCEANICS BENEFIT EQUALIZATION PLAN (Filed With SEC on November 22, 2011)

THIRD AMENDMENT TO ATWOOD OCEANICS BENEFIT EQUALIZATION PLAN (Filed With SEC on November 22, 2011)

FOURTH AMENDMENT TO ATWOOD OCEANICS BENEFIT EQUALIZATION PLAN (Filed With SEC on November 22, 2011)

CONTRACT FOR THE CONSTRUCTION AND SALE OF DRILLSHIP BY AND BETWEEN ALPHA EAGLE COMPANY AS BUYER AND DAEWOO SHIPBUILDING & MARINE ENGINEERING CO., LTD. AS BUILDER I N D E X (Filed With SEC on November 22, 2011)

Construction Contract for Third Rig between Atwood Oceanics Pacific Limited and PPL Shipyard Pte. Ltd. dated January 14, 2011. (**portions of this exhibit have been omitted and... (Filed With SEC on May 5, 2011)

Construction Contract for drillship between Atwood Oceanics Pacific Limited and Daewoo Shipbuilding and Marine Engineering Co., Ltd. dated January 28, 2011 (Filed With SEC on May 5, 2011)

Construction Contract for First Rig between Atwood Oceanics Pacific Limited and PPL Shipyard Pte. Ltd. dated October 1, 2010 (Filed With SEC on February 8, 2011)

Construction Contract for Second Rig between Atwood Oceanics Pacific Limited and PPL Shipyard Pte. Ltd. dated October 1, 2010 (Filed With SEC on February 8, 2011)

Atwood Oceanics, Inc. Retention Plan for Certain Salaried Employees dated as of January 1, 2011 (Filed With SEC on February 8, 2011)

Limited Waiver and Second Amendment to Credit Agreement dated November 29, 2010 (Filed With SEC on February 8, 2011)

Executive Agreement EXECUTIVE AGREEMENT (Filed With SEC on January 18, 2011)

EXECUTIVE AGREEMENT (Filed With SEC on July 20, 2010)

FIRST AMENDMENT TO CREDIT AGREEMENT (Filed With SEC on May 5, 2010)

ATWOOD OCEANICS, INC. RETENTION PLAN FOR CERTAIN SALARIED EMPLOYEES (Filed With SEC on February 4, 2010)

EMPLOYMENT AGREEMENT (Filed With SEC on December 14, 2009)

NON-EMPLOYEE DIRECTOR RESTRICTED STOCK AWARD AGREEMENT 2007 LONG-TERM INCENTIVE PLAN (Filed With SEC on November 25, 2009)

___________________________________ ATWOOD OCEANICS, INC. RETENTION PLAN FOR CERTAIN SALARIED EMPLOYEES ___________________________________ Effective as of January 1, 2009 This... (Filed With SEC on November 25, 2009)

EXECUTIVE RETENTION AGREEMENT (Filed With SEC on September 22, 2009)

EXECUTIVE AGREEMENT (Filed With SEC on September 22, 2009)

FORM OF NON-EMPLOYEE DIRECTOR RESTRICTED STOCK AWARD AGREEMENT 2007 LONG-TERM INCENTIVE PLAN (Filed With SEC on September 3, 2009)

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ATWOOD OCEANICS INC Contracts & Agreements