< leases

ALLBRITTON

Oil · District 08 · Lease #40002

Operator: WILLIAMS, CLAYTON ENERGY, INC.

Fields: SPRABERRY (TREND AREA)

Cum Oil

79k BBL

Cum Gas

237k MCF

casinghead

Wells

4

Production

2010-01 — 2026-04

Peak Month

2015-10

Production History

Cum Oil: 78,978 BBL Cum Gas: 236,823 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,358 BBL/mo

Di (annual)

38.1%

b-factor

0.3

EUR

60,434 BBL

R-squared

0.628

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
2010-01 — 2017-03 WILLIAMS, CLAYTON ENERGY, INC. 87 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
142-003-41208SABALO II OPERATING, LLC211,6002010-09-10
442-003-41604SABALO II OPERATING, LLC211,8002010-04-12
242-003-41577SABALO II OPERATING, LLC211,8002010-04-02
342-003-41578SABALO II OPERATING, LLC211,8002010-04-02