< leases

MCDERMOTT, C. W.

Oil · District 03 · Lease #20827

Operator: TMR EXPLORATION, INC.

Fields: NADA, E. (AMMANN 6500)

Cum Oil

194k BBL

Cum Gas

93k MCF

casinghead

Wells

2

Production

1993-01 — 2026-03

Peak Month

1993-07

Production History

Cum Oil: 194,005 BBL Cum Gas: 92,718 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,677 BBL/mo

Di (annual)

10.2%

b-factor

0.0

EUR

196,887 BBL

R-squared

0.869

type

exponential

Operator History (from monthly production reports)

2025-10 — 2026-07 MOUNTAIN V TEXAS, LLC 10 mo
2016-06 — 2025-09 TMR EXPLORATION, INC. 112 mo
2014-02 — 2016-05 FIELDWOOD ONSHORE LLC 28 mo
2008-04 — 2014-01 SANDRIDGE EXPL. AND PROD., LLC 70 mo
2002-05 — 2008-03 NEG OPERATING LLC 71 mo
1995-02 — 2002-04 SHANA PETROLEUM COMPANY 87 mo
1993-01 — 1995-01 MITCHELL ENERGY CORPORATION 25 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
642-089-31814MOUNTAIN V TEXAS, LLC27,2001990-11-14
442-089-30642MOUNTAIN V TEXAS, LLC410,5001989-09-25