UNIVERSITY 5-39

Oil // district 10 // lease#44285

op: PIEDRA OPERATING, LLC

cum_oil

187k BBL

cum_gas

0 MCF

wells

4

production

2013-07 — 2026-03

peak_month

2014-03

-- production_history

cum_oil: 186,652 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

4,784 BBL/mo

Di (annual)

144.1%

b-factor

0.7

EUR

108,305 BBL

R-squared

0.713

type

hyperbolic

-- wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5ATHLON HOLDINGS LP212,5002013-10-14
4ATHLON ENERGY OPERATING LLC112,5002013-07-31
3ATHLON ENERGY OPERATING LLC112,1002013-06-26
2DEVON ENERGY PRODUCTION CO, L.P.212,0002013-05-10
EOF // multi-state drilling data platform // 2026