UNIVERSITY "21-18"

Oil · District 08 · Lease #24358

Operator: RHOMBUS OPERATING CO., LTD

Cum Oil

121k BBL

Cum Gas

121k MCF

casinghead

Wells

2

Production

1993-01 — 2021-03

Peak Month

2004-06

Production History

Cum Oil: 121,199 BBL Cum Gas: 121,472 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

773 BBL/mo

Di (annual)

31.7%

b-factor

0.4

EUR

46,249 BBL

R-squared

0.384

type

hyperbolic

Operator History (from monthly production reports)

2024-08 — 2026-07 APACHE CORPORATION 24 mo
2023-08 — 2024-07 CALLON PERMIAN II, LLC 12 mo
2021-03 — 2023-07 PERCUSSION PETROLEUM OPER II,LLC 29 mo
2018-02 — 2021-02 OASIS PETROLEUM PERMIAN LLC 37 mo
2017-02 — 2018-01 FORGE ENERGY, LLC 12 mo
2002-11 — 2017-01 E.G.L. RESOURCES, INC. 171 mo
1998-03 — 2002-10 RHOMBUS OPERATING CO., LTD 56 mo
1993-01 — 1998-02 OXY USA INC. 62 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1PERCUSSION PETROLEUM OPER II,LLC18,7002022-05-06
2APACHE CORPORATION111,4501984-04-04