JONES A

Oil · District 8A · Lease #69467

Operator: SCHALK OIL COMPANY, INC.

Cum Oil

451k BBL

Cum Gas

0 MCF

Wells

6

Production

2009-09 — 2026-04

Peak Month

2010-08

Production History

Cum Oil: 451,103 BBL Cum Gas: 0 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

4,523 BBL/mo

Di (annual)

13.7%

b-factor

0.0

EUR

394,765 BBL

R-squared

0.346

type

exponential

Operator History (from monthly production reports)

2009-09 — 2026-07 SCHALK OIL COMPANY, INC. 203 mo

Wells (6)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
6SCHALK OIL COMPANY, INC.14,6002010-06-03
8SCHALK OIL COMPANY, INC.14,6002010-06-03
4SCHALK OIL COMPANY, INC.14,6002010-02-09
3SCHALK OIL COMPANY, INC.24,6032009-12-18
2SCHALK OIL COMPANY, INC.14,3502009-10-30
1SCHALK OIL COMPANY, INC.14,3002009-07-06