TINA BUTLER UNIT

Oil · District 2 · Lease #10063

Operator: MARATHON OIL EF LLC

Cum Oil

518k BBL

Cum Gas

0 MCF

Wells

3

Production

2012-05 — 2026-03

Peak Month

2012-12

Production History

Cum Oil: 518,413 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

15,853 BBL/mo

Di (annual)

442.3%

b-factor

1.2

EUR

330,904 BBL

R-squared

0.589

type

hyperbolic

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3HMARATHON OIL EF LLC215,0002012-07-26
2HMARATHON OIL EF LLC115,0002012-07-17
1HMARATHON OIL EF LLC114,5002012-04-13
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