SOVEREIGN 28-0-18-7 A

Oil · District 08 · Lease #63894

Operator: ANADARKO E&P ONSHORE LLC

Cum Oil

290k BBL

Cum Gas

559k MCF

casinghead

Wells

1

Production

2025-03 — 2026-04

Peak Month

2025-04

Production History

Cum Oil: 290,223 BBL Cum Gas: 559,261 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

72,121 BBL/mo

Di (annual)

640.6%

b-factor

0.6

EUR

330,781 BBL

R-squared

0.948

type

hyperbolic

Operator History (from monthly production reports)

2025-03 — 2026-07 ANADARKO E&P ONSHORE LLC 17 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
11HANADARKO E&P ONSHORE LLC113,0002024-07-03