Valaris Ltd — Director's Dealing 2014

May 21, 2014

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Ensco plc (ESV)
CIK: 0000314808
Period of Report: 2014-05-19

Reporting Person: BROWN DAVID A B (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2014-05-19	Class A Ordinary Shares	M	9016	—	Acquired	16248	Direct
2014-05-19	Class A Ordinary Shares	F	930	$49.70	Disposed	15318	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2014-05-19	Restricted Share Units	$	M	1412	Disposed	2014-05-19	Class A Ordinary Shares (1412.0)	Direct
2014-05-19	Restricted Share Units	$	M	3470	Disposed	2014-05-19	Class A Ordinary Shares (3470.0)	Direct
2014-05-19	Restricted Share Units	$	M	4134	Disposed	2014-05-19	Class A Ordinary Shares (4134.0)	Direct

Footnotes

F1: 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 $126.60 to Ensco plc with respect to the shares actually issued upon vesting of the restricted share units. The remaining 146 shares were withheld and not issued to satisfy certain tax withholding obligations.

F2: 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 $311.20 to Ensco plc with respect to the shares actually issued upon vesting of the restricted share units. The remaining 358 shares were withheld and not issued to satisfy certain tax withholding obligations.

F3: 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 $370.80 to Ensco plc with respect to the shares actually issued upon vesting of the restricted share units. The remaining 426 shares were withheld and not issued to satisfy certain tax withholding obligations.

F4: These shares were withheld to satisfy tax withholding obligations that arose upon vesting.

F5: Due to Mr. Brown's retirement from the board of directors as of the Annual General Meeting of Shareholders on May 19, 2014, the restricted stock unit vestings were accelerated to May 19, 2014.