BROWN UNIT

Oil · District 8A · Lease #69167

Operator: SCHALK OIL COMPANY, INC.

Cum Oil

6k BBL

Cum Gas

0 MCF

Wells

1

Production

2007-09 — 2014-09

Peak Month

2007-10

Production History

Cum Oil: 6,280 BBL Cum Gas: 0 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

461 BBL/mo

Di (annual)

139.6%

b-factor

0.4

EUR

6,445 BBL

R-squared

0.850

type

hyperbolic

Operator History (from monthly production reports)

2007-09 — 2023-06 SCHALK OIL COMPANY, INC. 190 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3SCHALK OIL COMPANY INC.15,2002007-08-01