WILLIAMS, GRANT H.

Oil · District 01 · Lease #8987

Operator: XTO ENERGY INC.

Fields: A.W.P. (OLMOS)

Cum Oil

64k BBL

Cum Gas

285k MCF

casinghead

Wells

2

Production

1993-01 — 2022-04

Peak Month

1996-02

Production History

Cum Oil: 63,740 BBL Cum Gas: 285,227 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

423 BBL/mo

Di (annual)

14.9%

b-factor

0.4

EUR

49,724 BBL

R-squared

0.563

type

hyperbolic

Operator History (from monthly production reports)

2007-08 — 2026-07 XTO ENERGY INC. 228 mo

2001-12 — 2007-07 DOMINION OKLAHOMA TEXAS E&P, INC 68 mo

1997-11 — 2001-11 DREYFUS, LOUIS NATURAL GAS CORP 49 mo

1993-01 — 1997-10 AMERICAN EXPLORATION COMPANY 58 mo

Wells (2)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
2	42-311-32511	XTO ENERGY INC.	1	10,500	1986-12-18
1	42-311-31833	XTO ENERGY INC.	1	10,233	1983-04-06