UNIVERSITY -A- -KO-

Oil · District 10 · Lease #12533

Operator: PIEDRA OPERATING, LLC

Cum Oil

671k BBL

Cum Gas

0 MCF

Wells

3

Production

1993-01 — 2026-03

Peak Month

1997-09

Production History

Cum Oil: 671,292 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

3,912 BBL/mo

Di (annual)

6.8%

b-factor

0.0

EUR

668,381 BBL

R-squared

0.705

type

exponential

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3BASS ENTERPRISES PRODUCTION CO.113,0002001-08-03
142-003-05068--------
242-003-03082--------
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