MARY

Oil · District 7C · Lease #17637

Operator: SUMMIT PETROLEUM LLC

Cum Oil

488k BBL

Cum Gas

3.1M MCF

casinghead

Wells

9

Production

2011-07 — 2025-06

Peak Month

2012-10

Production History

Cum Oil: 488,185 BBL Cum Gas: 3,120,648 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

16,484 BBL/mo

Di (annual)

52.9%

b-factor

0.3

EUR

530,515 BBL

R-squared

0.904

type

hyperbolic

Operator History (from monthly production reports)

2017-03 — 2026-06 SUMMIT PETROLEUM LLC 112 mo
2011-07 — 2017-02 COG OPERATING LLC 68 mo

Wells (9)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
12SUMMIT PETROLEUM LLC112,0002013-01-10
2SUMMIT PETROLEUM LLC112,0002012-10-24
7SUMMIT PETROLEUM LLC112,0002012-04-09
4SUMMIT PETROLEUM LLC112,0002012-03-01
14SUMMIT PETROLEUM LLC110,5002011-09-02
8SUMMIT PETROLEUM LLC110,3002011-05-25
1SUMMIT PETROLEUM LLC110,2002011-05-20
5SUMMIT PETROLEUM LLC110,2002011-05-19
3SUMMIT PETROLEUM LLC110,6452011-05-13