BELL

Oil · District 8A · Lease #68379

Operator: SCHALK OIL COMPANY, INC.

Cum Oil

607k BBL

Cum Gas

42 MCF

casinghead

Wells

4

Production

2001-11 — 2026-04

Peak Month

2006-05

Production History

Cum Oil: 606,991 BBL Cum Gas: 42 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

7,345 BBL/mo

Di (annual)

25.0%

b-factor

0.0

EUR

352,107 BBL

R-squared

0.898

type

exponential

Operator History (from monthly production reports)

2001-11 — 2026-07 SCHALK OIL COMPANY, INC. 297 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4AUSCHALK OIL COMPANY, INC.25,3002005-03-31
3AUSCHALK OIL COMPANY, INC.25,3002002-09-16
2ASCHALK OIL COMPANY, INC.15,2002001-09-20
2AUSCHALK OIL COMPANY, INC.15,2002001-09-20