JOINT FILING AGREEMENT
EXHIBIT 99.1
Pursuant to Rule 13d-1(k)(1)(iii) of the Securities Exchange Act of 1934, each of the undersigned agrees that a single joint Schedule 13D and any amendments thereto may be filed on behalf of each of the undersigned with respect to the securities held by each of them in Diamondback Energy, Inc.
Date: October 22, 2012
| DB Energy Holdings LLC | ||
| By: Wexford Capital LP, its Manager | ||
| By: Wexford GP LLC, its General Partner | ||
| By: /s/ Xxxxxx X. Xxxxx | ||
| Xxxxxx X. Xxxxx | ||
| Vice President and Assistant Secretary | ||
| Wexford Capital LP | ||
| By: Wexford GP LLC, its General Partner | ||
| By: /s/ Xxxxxx X. Xxxxx | ||
| Xxxxxx X. Xxxxx | ||
| Vice President and Assistant Secretary | ||
| Wexford GP LLC | ||
| By: /s/ Xxxxxx X. Xxxxx | ||
| Xxxxxx X. Xxxxx | ||
| Vice President and Assistant Secretary | ||
| By: /s/ Xxxxxx X. Xxxxxx | ||
| Xxxxxx X. Xxxxxx | ||
| By: /s/ Xxxxxxx X. Xxxxxxxx | ||
| Xxxxxxx X. Xxxxxxxx | ||
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