TOUCHSTONE

Oil · District 7B · Lease #28502

Operator: SOJOURNER DRILLING CORPORATION

Cum Oil

11k BBL

Cum Gas

54k MCF

casinghead

Wells

1

Production

1998-06 — 2011-11

Peak Month

1998-08

Production History

Cum Oil: 10,964 BBL Cum Gas: 54,313 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

282 BBL/mo

Di (annual)

50.5%

b-factor

0.3

EUR

9,390 BBL

R-squared

0.782

type

hyperbolic

Operator History (from monthly production reports)

1998-06 — 2013-10 SOJOURNER DRILLING CORPORATION 185 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3SOJOURNER DRILLING CORPORATION35,2501997-05-01