Valaris Ltd — Director's Dealing 2012

Aug 2, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Ensco plc (ESV)
CIK: 0000314808
Period of Report: 2012-07-31

Reporting Person: CHADWICK WILLIAM S JR (Executive Vice President & COO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-07-31	Class A Ordinary Shares	M	21250	$46.24	Acquired	231604	Direct
2012-07-31	Class A Ordinary Shares	S	10694	$55.00	Disposed	220910	Direct
2012-07-31	Class A Ordinary Shares	S	10556	$55.80	Disposed	210354	Direct
2012-07-31	Class A Ordinary Shares	F	235	$54.33	Disposed	210119	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-07-31	Employee Share Options (Right to Buy)	$46.24	M	21250	Disposed	2013-02-27	Class A Ordinary Shares (21250)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Class A Ordinary Shares	12	Indirect

Footnotes

F1: 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.

F2: The reporting person was awarded 42,500 options which vest at a rate of 25% per annum on the anniversary date of the grant over a four (4) year period.