UNIVERSITY -47-

Oil · District 7C · Lease #7022

Operator: RANGE PRODUCTION COMPANY

Cum Oil

49k BBL

Cum Gas

47k MCF

casinghead

Wells

6

Production

1993-01 — 2026-03

Peak Month

1994-12

Production History

Cum Oil: 48,746 BBL Cum Gas: 46,886 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

250 BBL/mo

Di (annual)

7.7%

b-factor

0.0

EUR

38,338 BBL

R-squared

0.797

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
1995-04 — 1998-08 LOMAK PRODUCTION COMPANY 41 mo
1995-03 — 1995-03 PARKER & PARSLEY DEVELOPMENT L.P 1 mo
1993-12 — 1995-02 MIDPAR L.P. 15 mo
1993-01 — 1993-11 GRAHAM ROYALTY, LTD. 11 mo

Wells (6)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
6DIGITAL OPERATING COMPANY LLC22,6001977-12-19
4DIGITAL OPERATING COMPANY LLC12,6001977-10-27
5DIGITAL OPERATING COMPANY LLC12,6001977-10-27
3DIGITAL OPERATING COMPANY LLC12,6001977-08-15
142-105-30985DIGITAL OPERATING COMPANY LLC------
242-105-31140DIGITAL OPERATING COMPANY LLC------