EXHIBIT 1
JOINT FILING AGREEMENT
In accordance with Rule 13d-1(k) promulgated under the Securities Exchange Act of 1934, as amended, the undersigned persons hereby agree to the joint filing on behalf of each of them of a statement on Schedule 13D (including amendments thereto) with respect to the common units representing limited partner interests in MID-CON ENERGY PARTNERS, LP and further agree that this Joint Filing Agreement be included as an Exhibit to such joint filing. In evidence thereof each of the undersigned, being duly authorized, hereby execute this Agreement on the date set forth below.
Date: December 30, 2011
YORKTOWN ENERGY PARTNERS VII, L.P.
| By: | Yorktown VII Company LP, | |||||
| its general partner | ||||||
| By: | Yorktown VII Associates LLC, | |||||
| its general partner | ||||||
| By: | /s/ Bryan H. Lawrence | |||||
| Bryan H. Lawrence, Member | ||||||
YORKTOWN VII COMPANY LP
| By: | Yorktown VII Associates LLC, | |||
| its general partner | ||||
| By: | /s/ Bryan H. Lawrence | |||
| Bryan H. Lawrence, Member | ||||
YORKTOWN VII ASSOCIATES LLC
| By: | /s/ Bryan H. Lawrence | |
| Bryan H. Lawrence, Member |
