MCDONALD

Oil · District 09 · Lease #28779

Operator: WESTERN CHIEF OPERATING, L.L.C.

Cum Oil

106k BBL

Cum Gas

117k MCF

casinghead

Wells

2

Production

1994-04 — 2012-09

Peak Month

1994-11

Production History

Cum Oil: 105,912 BBL Cum Gas: 117,280 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

4,070 BBL/mo

Di (annual)

75.4%

b-factor

0.2

EUR

80,860 BBL

R-squared

0.890

type

hyperbolic

Operator History (from monthly production reports)

2008-03 — 2014-07 WESTERN CHIEF OPERATING, L.L.C. 77 mo
2005-03 — 2008-02 WESTERN CHIEF OIL & GAS COMPANY 36 mo
1994-04 — 2005-02 MCCUTCHIN, JERRY 131 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2WESTERN CHIEF OPERATING L.L.C.18,0001995-01-13
1WESTERN CHIEF OPERATING L.L.C.28,0001994-01-21