HARRIS

Oil · District 7B · Lease #27971

Operator: WHITE ROCK OPERATING, INC.

Fields: JANE'S (CROSS PLAINS SD.)

Cum Oil

27k BBL

Cum Gas

0 MCF

Wells

4

Production

1996-09 — 2014-11

Peak Month

1996-10

Production History

Cum Oil: 26,765 BBL Cum Gas: 0 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

975 BBL/mo

Di (annual)

56.7%

b-factor

0.2

EUR

25,701 BBL

R-squared

0.900

type

hyperbolic

Operator History (from monthly production reports)

2017-11 — 2026-07 CWO ENERGY, LLC 105 mo

2016-10 — 2017-10 WHITE ROCK OPERATING, INC. 13 mo

2015-08 — 2016-09 M & K OPERATING LLC 14 mo

2013-07 — 2015-07 INCEPTUS OPERATIONS, LLC 25 mo

2012-04 — 2013-06 SEDCO OPERATING, LLC 15 mo

2008-07 — 2012-03 DISCOVERY PETROLEUM, L.L.C. 45 mo

1996-09 — 2008-06 HOFCO, INC. 142 mo

Wells (4)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
5	42-059-36473	CWO ENERGY LLC	1	1,999	1998-06-18
4	42-059-36442	CWO ENERGY LLC	1	1,999	1997-05-29
3	42-059-36437	CWO ENERGY LLC	1	1,999	1997-01-06
2	42-059-36414	CWO ENERGY LLC	1	1,999	1996-07-19