DEATLEY-HOLLUB UNIT

Oil · District 1 · Lease #15673

Operator: MARATHON OIL EF LLC

Cum Oil

651k BBL

Cum Gas

0 MCF

Wells

5

Production

2011-10 — 2026-03

Peak Month

2014-11

Production History

Cum Oil: 650,656 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

26,230 BBL/mo

Di (annual)

67.8%

b-factor

0.2

EUR

580,459 BBL

R-squared

0.687

type

hyperbolic

Wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2HMARATHON OIL EF LLC116,0002014-07-28
3HMARATHON OIL EF LLC116,0002014-07-28
4HMARATHON OIL EF LLC116,0002014-07-28
5HMARATHON OIL EF LLC116,0002014-07-28
1HHILCORP ENERGY COMPANY113,5002011-08-29
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