ORSBORN

Oil · District 7B · Lease #28453

Operator: VENTEX OPERATING CORP.

Cum Oil

9k BBL

Cum Gas

1k MCF

casinghead

Wells

1

Production

1998-04 — 2002-03

Peak Month

1998-08

Production History

Cum Oil: 8,718 BBL Cum Gas: 1,453 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

632 BBL/mo

Di (annual)

199.7%

b-factor

0.7

EUR

10,636 BBL

R-squared

0.779

type

hyperbolic

Operator History (from monthly production reports)

2021-12 — 2025-09 SOJOURNER DRILLING CORPORATION 46 mo
2014-05 — 2021-11 VENTEX OPERATING CORP. 91 mo
2005-01 — 2014-04 SMITH PIPE OF ABILENE 112 mo
2000-01 — 2004-12 L.C.S. PRODUCTION COMPANY 60 mo
1998-04 — 1999-12 HALLWOOD PETROLEUM, INC. 21 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1SOJOURNER DRILLING CORPORATION16,1501998-03-12