MAMMOTH 54-1-18-19 I

Oil · District 08 · Lease #63526

Operator: ANADARKO E&P ONSHORE LLC

Cum Oil

334k BBL

Cum Gas

1.4M MCF

casinghead

Wells

1

Production

2025-01 — 2026-04

Peak Month

2025-02

Production History

Cum Oil: 333,606 BBL Cum Gas: 1,360,961 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

32,065 BBL/mo

Di (annual)

118.8%

b-factor

0.0

EUR

324,248 BBL

R-squared

0.655

type

exponential

Operator History (from monthly production reports)

2025-01 — 2026-07 ANADARKO E&P ONSHORE LLC 19 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
131HANADARKO E&P ONSHORE LLC111,9772024-05-31