UNIVERSITY 8-3

Oil // district 10 // lease#44319

op: PIEDRA OPERATING, LLC

cum_oil

180k BBL

cum_gas

0 MCF

wells

6

production

2013-07 — 2026-03

peak_month

2013-08

-- production_history

cum_oil: 180,155 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

3,929 BBL/mo

Di (annual)

26.8%

b-factor

0.0

EUR

176,015 BBL

R-squared

0.677

type

exponential

-- wells (6)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
8ATHLON HOLDINGS LP212,5002014-02-14
9ATHLON HOLDINGS LP212,5002014-02-14
7ATHLON HOLDINGS LP212,5002014-01-16
6ATHLON ENERGY OPERATING LLC112,5002013-10-14
5ATHLON ENERGY OPERATING LLC112,2002013-07-31
4ATHLON ENERGY OPERATING LLC112,0002013-06-11
EOF // multi-state drilling data platform // 2026