DORIS CHALK -C-

Oil · District 08 · Lease #48049

Operator: KEELEY OIL, L.L.C.

Cum Oil

20k BBL

Cum Gas

0 MCF

Wells

5

Production

2011-12 — 2021-09

Peak Month

2018-06

Production History

Cum Oil: 19,889 BBL Cum Gas: 0 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

201 BBL/mo

Di (annual)

25.8%

b-factor

0.0

EUR

9,303 BBL

R-squared

0.411

type

exponential

Operator History (from monthly production reports)

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

Wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1DKEELEY OIL L.L.C.11,8501983-05-13
4KEELEY OIL L.L.C.12,5501982-12-15
1KEELEY OIL L.L.C.12,5501982-12-06
2KEELEY OIL L.L.C.12,5501982-12-06
3KEELEY OIL L.L.C.12,5501982-12-02