HOWARD

Oil · District 03 · Lease #9839

Operator: SHIDLER, MARK L., INC.

Cum Oil

188k BBL

Cum Gas

110k MCF

casinghead

Wells

3

Production

1993-01 — 2026-04

Peak Month

2002-01

Production History

Cum Oil: 187,937 BBL Cum Gas: 109,801 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,418 BBL/mo

Di (annual)

11.5%

b-factor

0.4

EUR

206,026 BBL

R-squared

0.943

type

hyperbolic

Operator History (from monthly production reports)

2000-05 — 2026-07 MCGOWAN WORKING PARTNERS, INC. 315 mo
1995-12 — 2000-04 MCGOWAN WORKING PARTNERS 53 mo
1993-12 — 1995-11 CHRISTEVE OIL COMPANY, INC. 24 mo
1993-01 — 1993-11 SHIDLER, MARK L., INC. 11 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
6MCGOWAN WORKING PARTNERS, INC.16,6151994-05-17
8MCGOWAN WORKING PARTNERS, INC.17,0001985-02-11
742-071-30519MCGOWAN WORKING PARTNERS, INC.------