TCU UNIVERSITY

Oil // district 10 // lease#44552

op: PIEDRA OPERATING, LLC

cum_oil

131k BBL

cum_gas

0 MCF

wells

3

production

2013-09 — 2026-03

peak_month

2015-12

-- production_history

cum_oil: 130,842 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

3,661 BBL/mo

Di (annual)

305.1%

b-factor

1.5

EUR

147,684 BBL

R-squared

0.820

type

hyperbolic

-- wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3PLACID OIL COMPANY413,9002016-08-18
2FIVESTONES ENERGY LLC113,5002013-02-25
1FIVESTONES ENERGY LLC113,5002013-02-22
EOF // data source: Texas Railroad Commission // 2026