BLACK DOG 4231 D

Oil · District 7C · Lease #20270

Operator: APACHE CORPORATION

Cum Oil

601k BBL

Cum Gas

3.7M MCF

casinghead

Wells

2

Production

2019-04 — 2026-04

Peak Month

2019-05

Production History

Cum Oil: 600,790 BBL Cum Gas: 3,709,435 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

55,221 BBL/mo

Di (annual)

296.0%

b-factor

0.8

EUR

781,964 BBL

R-squared

0.990

type

hyperbolic

Operator History (from monthly production reports)

2019-04 — 2026-07 APACHE CORPORATION 88 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
6HMAPACHE CORPORATION110,0002018-09-18
7HMAPACHE CORPORATION110,0002018-09-18