WILLIAMS, GRANT H. -A-

Oil · District 01 · Lease #10516

Operator: XTO ENERGY INC.

Fields: A.W.P. (OLMOS)

Cum Oil

72k BBL

Cum Gas

476k MCF

casinghead

Wells

2

Production

1993-01 — 2023-12

Peak Month

1997-04

Production History

Cum Oil: 72,292 BBL Cum Gas: 476,495 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

509 BBL/mo

Di (annual)

18.5%

b-factor

0.5

EUR

54,241 BBL

R-squared

0.678

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
2A	42-311-32514	XTO ENERGY INC.	1	10,500	1986-12-18
1A	42-311-32299	XTO ENERGY INC.	1	10,100	1985-05-20