GUAJILLO UNIT 11 SOUTH

Oil · District 02 · Lease #11099

Operator: MARATHON OIL EF LLC

Cum Oil

531k BBL

Cum Gas

898k MCF

casinghead

Wells

5

Production

2015-09 — 2026-04

Peak Month

2015-09

Production History

Cum Oil: 531,052 BBL Cum Gas: 898,322 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

40,101 BBL/mo

Di (annual)

231.0%

b-factor

0.6

EUR

490,907 BBL

R-squared

0.701

type

hyperbolic

Operator History (from monthly production reports)

2015-09 — 2026-07 MARATHON OIL EF LLC 131 mo

Wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
60HMARATHON OIL EF LLC117,3002014-12-30
88HMARATHON OIL EF LLC117,3002014-12-30
56HMARATHON OIL EF LLC217,3002014-12-22
58HMARATHON OIL EF LLC117,3002014-12-22
90HMARATHON OIL EF LLC117,3002014-12-22