GUAJILLO-STCH SA4

Oil · District 02 · Lease #12835

Operator: MARATHON OIL EF LLC

Cum Oil

226k BBL

Cum Gas

531k MCF

casinghead

Wells

1

Production

2024-06 — 2026-04

Peak Month

2024-07

Production History

Cum Oil: 225,612 BBL Cum Gas: 531,420 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

38,302 BBL/mo

Di (annual)

666.9%

b-factor

1.0

EUR

402,334 BBL

R-squared

0.992

type

hyperbolic

Operator History (from monthly production reports)

2024-06 — 2026-07 MARATHON OIL EF LLC 26 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4HMARATHON OIL EF LLC122,0002024-03-07