BLACKJACK

Oil · District 8A · Lease #67306

Operator: SIANA OIL & GAS

Fields: POKER DRAW (DEVONIAN)

Cum Oil

77k BBL

Cum Gas

14k MCF

casinghead

Wells

1

Production

1994-10 — 2012-06

Peak Month

1994-11

Production History

Cum Oil: 77,419 BBL Cum Gas: 13,507 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,495 BBL/mo

Di (annual)

29.4%

b-factor

0.2

EUR

76,024 BBL

R-squared

0.688

type

hyperbolic

Operator History (from monthly production reports)

2004-03 — 2026-07 SIANA OIL & GAS 269 mo

1995-01 — 2004-02 BROWNING OIL COMPANY, INC. 110 mo

1994-10 — 1994-12 PLACID OIL COMPANY 3 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
1	42-501-33921	SIANA OIL & GAS	2	13,000	1994-06-13