13D Filing: Corvex Capital and Energen Corp (EGN)

In connection with the above referenced call options, Corvex sold in the over-the-counter market European-style put options referencing an aggregate of 4,967,764 Shares at an exercise price of $36.50 per Share, which expire on the earlier of May 31, 2018, or the date on which
the corresponding American-style call option described above in this Item 5 is exercised.

(c) Except as set forth in Exhibit 3 attached
hereto or previously disclosed in the Schedule 13D, there have been no transactions in the Shares during the sixty days prior to the date hereof by any of the Reporting Persons.

(d) The limited partners of (or investors in) each of the private investment funds for which Corvex or its affiliates acts as general partner and/or
investment adviser have the right to participate in the receipt of dividends from, or proceeds from the sale of, the Shares held for the accounts of their respective funds in accordance with their respective limited partnership interests (or
investment percentages) in their respective funds.

(e) Not applicable.

Item 7. Material to be Filed as Exhibits

Exhibit 3
Transactions in the Shares effected in the past 60 days

5