LAMASTER BROTHERS 66

Oil · District 10 · Lease #8734

Operator: MIDSTATES PETROLEUM COMPANY LLC

Cum Oil

81k BBL

Cum Gas

2.1M MCF

casinghead

Wells

2

Production

2011-08 — 2026-04

Peak Month

2015-02

Production History

Cum Oil: 80,947 BBL Cum Gas: 2,064,597 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,829 BBL/mo

Di (annual)

115.7%

b-factor

0.7

EUR

78,036 BBL

R-squared

0.792

type

hyperbolic

Operator History (from monthly production reports)

2014-09 — 2026-07 COURSON OIL & GAS, INC. 143 mo
2011-08 — 2014-08 MIDSTATES PETROLEUM COMPANY LLC 37 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
A 1HCCOURSON OIL & GAS, INC.213,0002014-11-07
2HCOURSON OIL & GAS, INC.110,0002008-01-29