RAILROAD UNIT

Oil · District 7B · Lease #27153

Operator: SHIDLER, MARK L., INC.

Cum Oil

200k BBL

Cum Gas

97 MCF

casinghead

Wells

2

Production

1994-04 — 2026-04

Peak Month

1994-07

Production History

Cum Oil: 199,919 BBL Cum Gas: 97 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,158 BBL/mo

Di (annual)

22.6%

b-factor

0.6

EUR

213,197 BBL

R-squared

0.897

type

hyperbolic

Operator History (from monthly production reports)

2004-12 — 2026-07 SHIDLER, MARK L., INC. 260 mo
1999-09 — 2004-11 OKLAHOMA EA II, L.L.C. 63 mo
1996-08 — 1999-08 ANADARKO MINERALS, INC. 37 mo
1994-04 — 1996-07 HALE OIL & GAS PROPERTIES 28 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1 RSHIDLER, MARK L., INC.14,0002014-01-06
1SHIDLER, MARK L., INC.14,5001994-02-16