ECHOLS "9"

Oil · District 10 · Lease #41906

Operator: THREE RIVERS OPERATING CO II LLC

Cum Oil

51k BBL

Cum Gas

0 MCF

Wells

2

Production

2011-10 — 2026-03

Peak Month

2013-11

Production History

Cum Oil: 51,249 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

1,059 BBL/mo

Di (annual)

59.8%

b-factor

0.7

EUR

51,990 BBL

R-squared

0.656

type

hyperbolic

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2PIONEER NATURAL RES. USA, INC.212,3802013-05-13
1PIONEER NATURAL RES. USA, INC.111,4502011-03-25
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