< leases

SHAFTER LAKE "10"

Oil · District 08 · Lease #36667

Operator: SHERIDAN PRODUCTION COMPANY, LLC

Fields: SHAFTER LAKE, N. (ELLENBURGER)

Cum Oil

48k BBL

Cum Gas

11k MCF

casinghead

Wells

1

Production

2001-05 — 2010-05

Peak Month

2001-06

Production History

Cum Oil: 48,124 BBL Cum Gas: 11,127 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,952 BBL/mo

Di (annual)

167.8%

b-factor

0.5

EUR

41,287 BBL

R-squared

0.851

type

hyperbolic

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
2010-08 — 2013-01 SANDRIDGE EXPL. AND PROD., LLC 30 mo
2010-07 — 2010-07 OK ARENA OPERATING COMPANY 1 mo
2005-03 — 2010-06 DAKOTA RESOURCES, INC. (I) 64 mo
2001-05 — 2005-02 EOG RESOURCES, INC. 46 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
142-003-38729CRESCENT ENERGY OPERATING LLC113,0002001-01-22