SWAIN, W. F. 36

Oil // district 5 // lease#1194

op: UNION OIL COMPANY OF CALIFORNIA

fields: VAN

cum_oil

60k BBL

cum_gas

0 MCF

wells

3

production

1993-01 — 2026-03

peak_month

1994-09

-- production_history

cum_oil: 60,207 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,153 BBL/mo

Di (annual)

37.8%

b-factor

0.2

EUR

45,583 BBL

R-squared

0.830

type

hyperbolic

-- wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
10UNION OIL COMPANY OF CALIFORNIA23,2502014-03-22
3UNION OIL COMPANY OF CALIFORNIA13,0081995-09-12
7UNION EXPL. PARTNERS, LTD.13,2001988-10-24
EOF // data source: Texas Railroad Commission // 2026