KEYSTONE STATE

Oil · District 08 · Lease #36388

Operator: GREAT WESTERN DRILLING COMPANY

Cum Oil

11k BBL

Cum Gas

449k MCF

casinghead

Wells

1

Production

2000-06 — 2025-01

Peak Month

2006-08

Production History

Cum Oil: 10,821 BBL Cum Gas: 448,510 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

177 BBL/mo

Di (annual)

256.5%

b-factor

1.3

EUR

6,238 BBL

R-squared

0.416

type

hyperbolic

Operator History (from monthly production reports)

2024-11 — 2026-07 BASIN OIL & GAS OPERATING, LLC 21 mo
2000-06 — 2024-10 GREAT WESTERN DRILLING COMPANY 293 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
187BASIN OIL & GAS OPERATING, LLC210,6552000-02-11