SHIELDS UNIT A

Oil // district 10 // lease#47274

op: OXY USA INC.

cum_oil

862k BBL

cum_gas

0 MCF

wells

3

production

2015-08 — 2026-03

peak_month

2015-11

-- production_history

cum_oil: 861,679 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

11,151 BBL/mo

Di (annual)

15.1%

b-factor

0.0

EUR

884,605 BBL

R-squared

0.304

type

exponential

-- wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3112LSOXY USA INC.19,0002018-07-27
1WATHREE RIVERS OPERATING CO II LLC117,5002014-09-17
3102WATHREE RIVERS OPERATING CO II LLC117,5002014-09-17
EOF // data source: Texas Railroad Commission // 2026