TEXAS TECH UNIVERSITY

Oil · District 10 · Lease #44551

Operator: PIEDRA OPERATING, LLC

Cum Oil

40k BBL

Cum Gas

0 MCF

Wells

1

Production

2013-09 — 2026-03

Peak Month

2013-11

Production History

Cum Oil: 39,639 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

954 BBL/mo

Di (annual)

32.4%

b-factor

0.1

EUR

39,179 BBL

R-squared

0.736

type

hyperbolic

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2FIVESTONES ENERGY LLC113,5002013-02-25
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