ALLISON, E.C. OIL UNIT 1

Oil · District 06 · Lease #13589

Operator: XTO ENERGY INC.

Cum Oil

41k BBL

Cum Gas

316k MCF

casinghead

Wells

3

Production

1995-08 — 2002-11

Peak Month

1997-03

Production History

Cum Oil: 40,698 BBL Cum Gas: 316,476 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

3,725 BBL/mo

Di (annual)

238.0%

b-factor

0.3

EUR

26,812 BBL

R-squared

0.896

type

hyperbolic

Operator History (from monthly production reports)

2014-01 — 2026-07 XTO ENERGY INC. 151 mo
2000-04 — 2013-12 EXXON MOBIL CORPORATION 165 mo
1995-08 — 2000-03 EXXON CORP. 56 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1XTO ENERGY INC.210,0001994-09-29
1 UXTO ENERGY INC.210,0001994-09-29
6XTO ENERGY INC.210,0001994-09-29