HALL TRUST

Oil // district 10 // lease#42504

op: THREE RIVERS OPERATING CO II LLC

cum_oil

147k BBL

cum_gas

0 MCF

wells

3

production

2011-10 — 2026-03

peak_month

2014-03

-- production_history

cum_oil: 146,657 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

4,371 BBL/mo

Di (annual)

89.2%

b-factor

0.5

EUR

112,555 BBL

R-squared

0.857

type

hyperbolic

-- wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1311OXY USA INC.210,5002018-04-27
1321THREE RIVERS OPERATING CO II LLC110,8502014-10-07
1322THREE RIVERS OPERATING CO II LLC110,9002013-09-18
EOF // data source: Texas Railroad Commission // 2026