TURNBULL UNIT A-E SA2

Oil · District 02 · Lease #12689

Operator: MARATHON OIL EF LLC

Cum Oil

132k BBL

Cum Gas

284k MCF

casinghead

Wells

1

Production

2023-08 — 2026-04

Peak Month

2024-03

Production History

Cum Oil: 131,501 BBL Cum Gas: 283,822 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

19,580 BBL/mo

Di (annual)

648.8%

b-factor

1.1

EUR

256,796 BBL

R-squared

0.955

type

hyperbolic

Operator History (from monthly production reports)

2023-08 — 2026-07 MARATHON OIL EF LLC 36 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2HMARATHON OIL EF LLC122,0002023-05-26