Exhibit 31.3

CERTIFICATION BY CHIEF EXECUTIVE OFFICER PURSUANT TO
RULE 13a-14(a) AND 15d-14(a) UNDER THE EXCHANGE ACT

I, T.M. “Roe” Patterson, certify that:

1.I have reviewed this annual report on Form 10-K/A of Basic Energy Services, Inc.; and

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report.

/s/ T.M. “Roe” Patterson     
T.M. “Roe” Patterson
Chief Executive Officer

Date: April 6, 2017