MASSEY CHILDREN

Oil · District 01 · Lease #12526

Operator: EXPRESS OIL AND GAS

Cum Oil

43k BBL

Cum Gas

10k MCF

casinghead

Wells

1

Production

1993-01 — 2003-03

Peak Month

1996-05

Production History

Cum Oil: 42,582 BBL Cum Gas: 9,795 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,085 BBL/mo

Di (annual)

36.7%

b-factor

0.0

EUR

35,445 BBL

R-squared

0.488

type

exponential

Operator History (from monthly production reports)

1994-10 — 2026-07 EXPRESS OIL AND GAS 382 mo
1993-01 — 1994-09 DALE OPERATING COMPANY 21 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1EXPRESS OIL AND GAS17,3001990-05-09