HERNDON UNIT

Oil · District 7B · Lease #28221

Operator: VENTEX OPERATING CORP.

Cum Oil

91k BBL

Cum Gas

20k MCF

casinghead

Wells

1

Production

1997-06 — 2019-11

Peak Month

1997-07

Production History

Cum Oil: 90,692 BBL Cum Gas: 20,082 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,536 BBL/mo

Di (annual)

24.1%

b-factor

0.0

EUR

76,586 BBL

R-squared

0.566

type

exponential

Operator History (from monthly production reports)

2014-02 — 2026-07 SOJOURNER DRILLING CORPORATION 150 mo
1997-06 — 2014-01 VENTEX OPERATING CORP. 200 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1SOJOURNER DRILLING CORPORATION14,9001997-05-06