DORIS CHALK -A-

Oil · District 08 · Lease #48048

Operator: KEELEY OIL, L.L.C.

Cum Oil

25k BBL

Cum Gas

0 MCF

Wells

2

Production

2011-12 — 2021-09

Peak Month

2015-10

Production History

Cum Oil: 25,277 BBL Cum Gas: 0 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

343 BBL/mo

Di (annual)

16.2%

b-factor

0.0

EUR

25,442 BBL

R-squared

0.494

type

exponential

Operator History (from monthly production reports)

2011-12 — 2026-07 KEELEY OIL, L.L.C. 176 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2AKEELEY OIL L.L.C.13,2501981-10-29
1KEELEY OIL L.L.C.13,2501981-06-15