< leases

HARRIS "A"

Oil · District 7B · Lease #28576

Operator: WHITE ROCK OPERATING, INC.

Fields: JANE'S (CROSS PLAINS SD.)

Cum Oil

9k BBL

Cum Gas

0 MCF

Wells

2

Production

1999-01 — 2017-09

Peak Month

2000-06

Production History

Cum Oil: 8,865 BBL Cum Gas: 0 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

158 BBL/mo

Di (annual)

26.6%

b-factor

0.1

EUR

7,848 BBL

R-squared

0.705

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
2012-07 — 2015-07 INCEPTUS OPERATIONS, LLC 37 mo
2012-04 — 2012-06 SEDCO OPERATING, LLC 3 mo
2008-07 — 2012-03 DISCOVERY PETROLEUM, L.L.C. 45 mo
1999-01 — 2008-06 HOFCO, INC. 114 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
242-059-36496CWO ENERGY LLC11,9991999-06-16
142-059-36443WHITE ROCK OPERATING, INC.21,9991998-04-15