BILSKY-CHUMCHAL SA1

Oil · District 01 · Lease #20697

Operator: MARATHON OIL EF LLC

Cum Oil

265k BBL

Cum Gas

345k MCF

casinghead

Wells

1

Production

2022-08 — 2026-04

Peak Month

2022-11

Production History

Cum Oil: 264,954 BBL Cum Gas: 345,174 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

14,352 BBL/mo

Di (annual)

75.6%

b-factor

0.0

EUR

227,760 BBL

R-squared

0.601

type

exponential

Operator History (from monthly production reports)

2022-08 — 2026-07 MARATHON OIL EF LLC 48 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HMARATHON OIL EF LLC124,0002022-05-18