ALLBRITTON "B"

Oil · District 08 · Lease #40921

Operator: WILLIAMS, CLAYTON ENERGY, INC.

Cum Oil

48k BBL

Cum Gas

193k MCF

casinghead

Wells

2

Production

2011-02 — 2026-04

Peak Month

2011-10

Production History

Cum Oil: 47,667 BBL Cum Gas: 193,373 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,279 BBL/mo

Di (annual)

48.6%

b-factor

0.4

EUR

51,153 BBL

R-squared

0.801

type

hyperbolic

Operator History (from monthly production reports)

2024-06 — 2026-07 SABALO II OPERATING, LLC 26 mo
2021-09 — 2024-05 MONTROSE OPERATING LLC 33 mo
2017-10 — 2021-08 THRONE PETROLEUM RESOURCES LLC 47 mo
2017-04 — 2017-09 NBL PERMIAN LLC 6 mo
2011-02 — 2017-03 WILLIAMS, CLAYTON ENERGY, INC. 74 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1SABALO II OPERATING, LLC111,7002010-09-20
2SABALO II OPERATING, LLC111,7002010-09-20