AGGIE UNIVERSITY

Oil // district 10 // lease#44654

op: PIEDRA OPERATING, LLC

cum_oil

31k BBL

cum_gas

0 MCF

wells

1

production

2013-09 — 2026-03

peak_month

2013-11

-- production_history

cum_oil: 30,673 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

449 BBL/mo

Di (annual)

30.8%

b-factor

0.5

EUR

30,913 BBL

R-squared

0.456

type

hyperbolic

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1FIVESTONES ENERGY LLC113,5002013-02-27
EOF // data source: Texas Railroad Commission // 2026