CULBERSON-HUGHES UNIT

Oil · District 2 · Lease #11041

Operator: MARATHON OIL EF LLC

Cum Oil

776k BBL

Cum Gas

0 MCF

Wells

4

Production

2015-04 — 2026-03

Peak Month

2017-05

Production History

Cum Oil: 775,771 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

65,640 BBL/mo

Di (annual)

449.1%

b-factor

0.8

EUR

639,753 BBL

R-squared

0.973

type

hyperbolic

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2HMARATHON OIL EF LLC218,2002016-10-26
3HMARATHON OIL EF LLC218,2002016-10-26
4HMARATHON OIL EF LLC218,2002016-10-26
301HMARATHON OIL EF LLC118,3002014-09-18
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