ETHEL

Oil · District 7B · Lease #28376

Operator: VENTEX OPERATING CORP.

Cum Oil

61k BBL

Cum Gas

7k MCF

casinghead

Wells

1

Production

1998-01 — 2018-08

Peak Month

1998-01

Production History

Cum Oil: 60,791 BBL Cum Gas: 6,674 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

740 BBL/mo

Di (annual)

20.0%

b-factor

0.3

EUR

60,834 BBL

R-squared

0.708

type

hyperbolic

Operator History (from monthly production reports)

2014-02 — 2025-02 SOJOURNER DRILLING CORPORATION 133 mo
1998-01 — 2014-01 VENTEX OPERATING CORP. 193 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1SOJOURNER DRILLING CORPORATION14,9001997-12-01