CHEATHAM HEIRS

Oil · District 7B · Lease #26636

Operator: QUAIL WELL SERVICE, INC.

Fields: CHEATHAM (COOK, UPPER)

Cum Oil

78k BBL

Cum Gas

33 MCF

casinghead

Wells

1

Production

1993-01 — 2026-03

Peak Month

1996-07

Production History

Cum Oil: 78,438 BBL Cum Gas: 33 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

720 BBL/mo

Di (annual)

22.8%

b-factor

0.3

EUR

52,501 BBL

R-squared

0.880

type

hyperbolic

Operator History (from monthly production reports)

2021-01 — 2026-07 JQL ENERGY, LLC 67 mo

2002-12 — 2020-12 QUAIL WELL SERVICE, INC. 217 mo

1994-02 — 2002-11 HEART LAND PETROLEUM CORPORATION 106 mo

1993-07 — 1994-01 L.C.S. PRODUCTION COMPANY 7 mo

1993-01 — 1993-06 BEAIRD, R.A. OIL OPERATING CO. 6 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
1	42-441-01923	JQL ENERGY, LLC	1	2,600	1992-07-01