UNIVERSITY -9B-

Oil · District 7C · Lease #7951

Operator: STALEY OPERATING CO.

Cum Oil

95k BBL

Cum Gas

223k MCF

casinghead

Wells

9

Production

1993-01 — 2025-12

Peak Month

1997-12

Production History

Cum Oil: 95,143 BBL Cum Gas: 222,730 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

510 BBL/mo

Di (annual)

7.6%

b-factor

0.0

EUR

78,463 BBL

R-squared

0.806

type

exponential

Operator History (from monthly production reports)

2022-07 — 2026-07 DIGITAL OPERATING COMPANY LLC 49 mo
2004-10 — 2022-06 ENDEAVOR ENERGY RESOURCES L.P. 213 mo
1998-09 — 2004-09 RANGE PRODUCTION COMPANY 73 mo
1994-05 — 1998-08 LOMAK PRODUCTION COMPANY 52 mo
1993-01 — 1994-04 STALEY OPERATING CO. 16 mo

Wells (9)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
9DIGITAL OPERATING COMPANY LLC12,7001997-10-13
3DIGITAL OPERATING COMPANY LLC12,7001980-02-12
4DIGITAL OPERATING COMPANY LLC12,7001980-02-12
5DIGITAL OPERATING COMPANY LLC12,7001980-02-12
6DIGITAL OPERATING COMPANY LLC12,7001980-02-12
7DIGITAL OPERATING COMPANY LLC12,7001980-02-12
8DIGITAL OPERATING COMPANY LLC12,7001980-02-12
2DIGITAL OPERATING COMPANY LLC12,6001979-10-19
1DIGITAL OPERATING COMPANY LLC12,6001979-06-13