CHALLENGER UNIT C AC

Oil · District 2 · Lease #11418

Operator: MARATHON OIL EF LLC

Cum Oil

1.4M BBL

Cum Gas

0 MCF

Wells

3

Production

2017-06 — 2026-03

Peak Month

2017-11

Production History

Cum Oil: 1,366,378 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

105,777 BBL/mo

Di (annual)

247.9%

b-factor

0.8

EUR

1,752,678 BBL

R-squared

0.952

type

hyperbolic

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3HMARATHON OIL EF LLC220,0002018-06-22
1HMARATHON OIL EF LLC117,5002016-12-14
2HMARATHON OIL EF LLC117,5002016-12-14
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