BLACK STONE "A"

Oil · District 03 · Lease #23900

Operator: HENNIG PRODUCTION CO., INC.

Cum Oil

50k BBL

Cum Gas

72k MCF

casinghead

Wells

1

Production

2000-08 — 2005-01

Peak Month

2000-09

Production History

Cum Oil: 49,928 BBL Cum Gas: 71,552 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,912 BBL/mo

Di (annual)

221.4%

b-factor

0.1

EUR

17,570 BBL

R-squared

0.654

type

hyperbolic

Operator History (from monthly production reports)

2009-06 — 2010-03 ACOCK/ANAQUA OPERATING CO., LP 10 mo
2009-03 — 2009-05 ACOCK OPERATING LIMITED 3 mo
2002-04 — 2009-02 CROWN PETROLEUM CORP. 83 mo
2000-08 — 2002-03 HENNIG PRODUCTION CO., INC. 20 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1RHENNIG PRODUCTION CO. INC.313,5002000-05-30