SWAIN, O. L. 11 "B"

Oil // district 5 // lease#3712

op: UNION OIL COMPANY OF CALIFORNIA

cum_oil

72k BBL

cum_gas

0 MCF

wells

4

production

2000-11 — 2026-03

peak_month

2002-02

-- production_history

cum_oil: 72,384 BBL cum_gas: 0 MCF

-- wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
19UNOCAL EXPLORATION CORPORATION22,8002002-01-22
20UNOCAL EXPLORATION CORPORATION22,9002001-12-13
4UNION OIL COMPANY OF CALIFORNIA22,9242001-06-12
15UNION OIL COMPANY OF CALIFORNIA22,3152000-10-20
EOF // data source: Texas Railroad Commission // 2026