SWINK 402

Oil · District 10 · Lease #8417

Operator: MOUNTAINSIDE ENERGY OPERATING, L

Cum Oil

190k BBL

Cum Gas

957k MCF

casinghead

Wells

1

Production

2011-04 — 2026-04

Peak Month

2011-08

Production History

Cum Oil: 190,276 BBL Cum Gas: 956,843 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

8,364 BBL/mo

Di (annual)

371.1%

b-factor

1.2

EUR

198,159 BBL

R-squared

0.880

type

hyperbolic

Operator History (from monthly production reports)

2026-02 — 2026-07 MOUNTAINSIDE ENERGY OPERATING, L 6 mo
2022-02 — 2026-01 HIGHMARK ENERGY OPERATING, LLC 48 mo
2011-04 — 2022-01 EOG RESOURCES, INC. 130 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HMOUNTAINSIDE ENERGY OPERATING, L19,0002011-01-12