< leases

NUNNALLY

Oil · District 7B · Lease #28595

Operator: TCF ENERGY, INC.

Fields: BLIND HOG (RANGER)

Cum Oil

55k BBL

Cum Gas

138k MCF

casinghead

Wells

3

Production

1999-01 — 2026-03

Peak Month

1999-08

Production History

Cum Oil: 55,219 BBL Cum Gas: 137,651 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

842 BBL/mo

Di (annual)

23.7%

b-factor

0.0

EUR

42,499 BBL

R-squared

0.703

type

exponential

Operator History (from monthly production reports)

2022-03 — 2026-07 SIMPSON OPERATING SERVICES, LP 53 mo
2020-10 — 2022-02 OTEX LLC 17 mo
2015-05 — 2020-09 NORAMCO PRODUCTION, LLC 65 mo
2005-01 — 2015-04 MINERAL TECHNOLOGIES, INC. 124 mo
2002-07 — 2004-12 TCF ENERGY, INC. 30 mo
2002-01 — 2002-06 MINERAL TECHNOLOGIES, INC. 6 mo
1999-01 — 2001-12 ECLIPSE OIL & GAS, INC. 36 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
342-133-37761SIMPSON OPERATING SERVICES, LP13,7001998-12-03
442-133-37759SIMPSON OPERATING SERVICES, LP13,7001998-11-03
542-133-37760SIMPSON OPERATING SERVICES, LP13,7001998-11-03