BROWN-ALTMAN -B-

Oil · District 08 · Lease #28095

Operator: XTO ENERGY INC.

Fields: EMPEROR, DEEP

Cum Oil

38k BBL

Cum Gas

54k MCF

casinghead

Wells

2

Production

1993-01 — 2023-07

Peak Month

1994-10

Production History

Cum Oil: 37,941 BBL Cum Gas: 53,617 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

239 BBL/mo

Di (annual)

8.8%

b-factor

0.0

EUR

32,318 BBL

R-squared

0.302

type

exponential

Operator History (from monthly production reports)

2012-01 — 2026-07 XTO ENERGY INC. 175 mo
2000-04 — 2011-12 EXXON MOBIL CORPORATION 141 mo
1993-01 — 2000-03 EXXON CORP. 87 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
22HILCORP ENERGY COMPANY38,0001998-10-20
37XTO ENERGY INC.13,4001983-03-18