Valaris Ltd — Director's Dealing 2012

Aug 7, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Ensco plc (ESV)
CIK: 0000314808
Period of Report: 2012-08-03

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-08-03	Class A Ordinary Shares	M	22836	$34.45	Acquired	232955	Direct
2012-08-03	Class A Ordinary Shares	S	47836	$55.76	Disposed	185119	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-08-03	Employee Shares Option (Right to Buy)	$34.45	M	22836	Disposed	2017-06-01	Class A Ordinary Shares (22836)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Class A Ordinary Shares	12	Indirect

Footnotes

F1: This transaction was executed in multiple trades at prices ranging from $55.43 to $56.00. The price reported above reflects the weighted average sales price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F2: The options became exercisable in three equal annual installments beginning on June 1, 2011.