Valaris Ltd — Director's Dealing 2013

May 10, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Ensco plc (ESV)
CIK: 0000314808
Period of Report: 2013-05-08

Reporting Person: BROWN DAVID A B (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-05-08	Class A Ordinary Shares	M	5553	$24.58	Acquired	12660	Direct
2013-05-08	Class A Ordinary Shares	S	5553	$62	Disposed	7107	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2013-05-08	Non-Employee Stock Option (right to buy)	$24.58	M	5553	Disposed	2015-01-03	Class A Ordinary Shares (5553.0)	Direct

Footnotes

F1: The transaction was executed in multiple trades at prices ranging from $62.08 to $61.97. 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 two equal annual installments beginning on January 3, 2006.