SOVEREIGN 28-0-18-7 H

Oil · District 08 · Lease #64239

Operator: ANADARKO E&P ONSHORE LLC

Cum Oil

198k BBL

Cum Gas

340k MCF

casinghead

Wells

1

Production

2025-04 — 2026-04

Peak Month

2025-05

Production History

Cum Oil: 197,889 BBL Cum Gas: 340,169 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

33,492 BBL/mo

Di (annual)

285.5%

b-factor

0.3

EUR

201,626 BBL

R-squared

0.825

type

hyperbolic

Operator History (from monthly production reports)

2025-04 — 2026-07 ANADARKO E&P ONSHORE LLC 16 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
18HANADARKO E&P ONSHORE LLC113,0002024-07-03