SILVERBACK 13-8 UNIT 1

Oil · District 10 · Lease #54221

Operator: ENDEAVOR ENERGY RESOURCES L.P.

Cum Oil

2.8M BBL

Cum Gas

0 MCF

Wells

9

Production

2019-12 — 2026-03

Peak Month

2020-10

Production History

Cum Oil: 2,778,487 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

239,308 BBL/mo

Di (annual)

536.2%

b-factor

1.2

EUR

4,344,007 BBL

R-squared

0.960

type

hyperbolic

Wells (9)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
211ENDEAVOR ENERGY RESOURCES L.P.311,0002019-10-07
112ENDEAVOR ENERGY RESOURCES L.P.211,0002019-10-04
124ENDEAVOR ENERGY RESOURCES L.P.111,0002019-10-04
134ENDEAVOR ENERGY RESOURCES L.P.211,0002019-10-04
221ENDEAVOR ENERGY RESOURCES L.P.211,0002019-10-04
223ENDEAVOR ENERGY RESOURCES L.P.211,0002019-10-04
231ENDEAVOR ENERGY RESOURCES L.P.211,0002019-10-04
233ENDEAVOR ENERGY RESOURCES L.P.211,0002019-10-04
241ENDEAVOR ENERGY RESOURCES L.P.211,0002019-10-04
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