BROWN-ALTMAN -B-

Oil · District 08 · Lease #1349

Operator: XTO ENERGY INC.

Cum Oil

1.0M BBL

Cum Gas

852k MCF

casinghead

Wells

17

Production

1993-01 — 2026-04

Peak Month

2018-09

Production History

Cum Oil: 1,041,835 BBL Cum Gas: 852,489 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

6,681 BBL/mo

Di (annual)

12.8%

b-factor

0.6

EUR

1,020,306 BBL

R-squared

0.899

type

hyperbolic

Operator History (from monthly production reports)

2025-04 — 2026-07 HILCORP ENERGY COMPANY 16 mo
2012-01 — 2025-03 XTO ENERGY INC. 159 mo
2000-04 — 2011-12 EXXON MOBIL CORPORATION 141 mo
1993-01 — 2000-03 EXXON CORP. 87 mo

Wells (17)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
10HILCORP ENERGY COMPANY14,9602019-11-04
10WHILCORP ENERGY COMPANY14,9602019-11-04
48HILCORP ENERGY COMPANY28,0001998-10-19
36WHILCORP ENERGY COMPANY15,0001989-10-23
32HILCORP ENERGY COMPANY26,9051989-09-05
32WHILCORP ENERGY COMPANY26,9051989-09-05
26WHILCORP ENERGY COMPANY15,0001989-08-28
27WHILCORP ENERGY COMPANY15,0001989-08-28
13W42-495-30532HILCORP ENERGY COMPANY------
242-495-02076HILCORP ENERGY COMPANY------
342-495-02063HILCORP ENERGY COMPANY------
442-495-02064HILCORP ENERGY COMPANY------
542-495-02065HILCORP ENERGY COMPANY------
642-495-02066HILCORP ENERGY COMPANY------
7W42-495-02067HILCORP ENERGY COMPANY------
842-495-02068HILCORP ENERGY COMPANY------
942-495-02069HILCORP ENERGY COMPANY------