GUAJILLO UNIT 16 SOUTH

Oil · District 01 · Lease #18907

Operator: MARATHON OIL EF LLC

Cum Oil

835k BBL

Cum Gas

1.5M MCF

casinghead

Wells

4

Production

2017-01 — 2026-04

Peak Month

2017-02

Production History

Cum Oil: 835,344 BBL Cum Gas: 1,469,270 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

98,182 BBL/mo

Di (annual)

423.9%

b-factor

0.7

EUR

820,966 BBL

R-squared

0.950

type

hyperbolic

Operator History (from monthly production reports)

2017-01 — 2026-07 MARATHON OIL EF LLC 115 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3HMARATHON OIL EF LLC118,5002016-06-08
1HMARATHON OIL EF LLC118,1002016-05-16
4HMARATHON OIL EF LLC118,5002016-05-16
2HMARATHON OIL EF LLC118,1002016-05-13