TEXACO FEE

Oil · District 7B · Lease #28534

Operator: SOJOURNER DRILLING CORPORATION

Cum Oil

1.6M BBL

Cum Gas

177k MCF

casinghead

Wells

13

Production

1998-09 — 2026-04

Peak Month

2001-03

Production History

Cum Oil: 1,589,597 BBL Cum Gas: 176,517 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

36,787 BBL/mo

Di (annual)

43.0%

b-factor

0.2

EUR

1,282,017 BBL

R-squared

0.958

type

hyperbolic

Operator History (from monthly production reports)

2013-08 — 2026-07 SOJOURNER DRILLING CORPORATION 156 mo
2005-12 — 2013-07 PAINT ROCK OPERATING, LLC 92 mo
2001-01 — 2005-11 CHISHOLM OPERATING, INC. 59 mo
1998-09 — 2000-12 CHISHOLM EXPLORATION 28 mo

Wells (13)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
12SOJOURNER DRILLING CORPORATION14,3002001-01-31
10SOJOURNER DRILLING CORPORATION14,3002000-12-01
9SOJOURNER DRILLING CORPORATION14,1002000-10-12
8SOJOURNER DRILLING CORPORATION14,9992000-09-15
7SOJOURNER DRILLING CORPORATION14,0002000-08-04
2ASOJOURNER DRILLING CORPORATION14,3002000-05-04
6SOJOURNER DRILLING CORPORATION14,2002000-04-17
5SOJOURNER DRILLING CORPORATION14,1002000-02-11
1ASOJOURNER DRILLING CORPORATION14,1002000-02-01
4SOJOURNER DRILLING CORPORATION14,2001999-12-31
3SOJOURNER DRILLING CORPORATION14,2001999-12-16
2SOJOURNER DRILLING CORPORATION13,9991998-11-24
1SOJOURNER DRILLING CORPORATION14,9991998-08-18