< leases

MARKHAM

Oil · District 8A · Lease #65175

Operator: SHERIDAN PRODUCTION COMPANY, LLC

Fields: TEX-MEX, SE. (WICHITA ALBANY)

Cum Oil

87k BBL

Cum Gas

125k MCF

casinghead

Wells

3

Production

1993-01 — 2024-01

Peak Month

1993-07

Production History

Cum Oil: 87,330 BBL Cum Gas: 125,022 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

569 BBL/mo

Di (annual)

8.2%

b-factor

0.0

EUR

82,302 BBL

R-squared

0.803

type

exponential

Operator History (from monthly production reports)

2025-11 — 2026-07 CRESCENT ENERGY OPERATING, LLC 9 mo
2022-01 — 2025-10 CONTANGO RESOURCES, LLC 46 mo
2021-12 — 2021-12 CONTANGO RESOURCES, INC. 1 mo
2020-04 — 2021-11 FDL OPERATING, LLC 20 mo
2013-02 — 2020-03 SHERIDAN PRODUCTION COMPANY, LLC 86 mo
2011-07 — 2013-01 SANDRIDGE EXPL. AND PROD., LLC 19 mo
2000-02 — 2011-06 RIM OPERATING, INC. 137 mo
1993-01 — 2000-01 PLAINS PETROLEUM OPERATING CO. 85 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
342-165-37447CRESCENT ENERGY OPERATING LLC17,8002011-07-25
242-165-34099RIM OPERATING INC.28,8002005-07-27
142-165-33011CRESCENT ENERGY OPERATING LLC17,8001984-10-26