ERNESTINE

Oil · District 8A · Lease #68548

Operator: WISHBONE TEXAS OPERATING CO LLC

Fields: BLUE DUCK (FUSSELMAN)

Cum Oil

38k BBL

Cum Gas

0 MCF

Wells

1

Production

2003-02 — 2012-02

Peak Month

2003-03

Production History

Cum Oil: 38,297 BBL Cum Gas: 0 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,870 BBL/mo

Di (annual)

97.0%

b-factor

0.0

EUR

35,501 BBL

R-squared

0.905

type

exponential

Operator History (from monthly production reports)

2019-02 — 2026-07 RING ENERGY, INC. 90 mo

2016-01 — 2019-01 WISHBONE TEXAS OPERATING CO LLC 37 mo

2014-09 — 2015-12 MANZANO, LLC 16 mo

2008-03 — 2014-08 BLUE RIDGE RESOURCES, LLC 78 mo

2006-03 — 2008-02 SMITH OPERATING AND MGMT CO. 24 mo

2004-01 — 2006-02 NORTHSTAR OPERATING COMPANY 26 mo

2003-11 — 2003-12 LIMARK CORPORATION 2 mo

2003-02 — 2003-10 MILLER, DYER & CO. LLC 9 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
1	42-501-34776	RING ENERGY INC.	1	12,500	2002-10-31