FELDMAN -113-

Oil // district 10 // lease#25231

op: SOUTHWEST ROYALTIES, INC.

cum_oil

22k BBL

cum_gas

0 MCF

wells

4

production

1993-01 — 2026-03

peak_month

1993-01

-- production_history

cum_oil: 21,505 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

213 BBL/mo

Di (annual)

11.8%

b-factor

0.0

EUR

21,610 BBL

R-squared

0.662

type

exponential

-- wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4HNG OIL COMPANY16,8001980-02-27
3HNG OIL COMPANY16,6501979-03-16
2HNG OIL COMPANY16,6501978-12-18
1HNG OIL COMPANY16,8001978-09-26
EOF // multi-state drilling data platform // 2026