SEIBER, E. H.

Oil // district 11 // lease#63410

op: THRESHOLD DEVELOPMENT COMPANY

cum_oil

91k BBL

cum_gas

0 MCF

wells

10

production

1993-01 — 2026-03

peak_month

1993-09

-- production_history

cum_oil: 90,525 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

708 BBL/mo

Di (annual)

10.5%

b-factor

0.1

EUR

87,926 BBL

R-squared

0.887

type

hyperbolic

-- wells (10)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2RJOPLIN OIL CO., INC.15,1502018-05-01
8SPARKMAN PRODUCING COMPANY25,2001986-09-09
6THRESHOLD DEVELOPMENT CO.25,2001984-10-29
7THRESHOLD DEVELOPMENT CO.25,2001984-10-29
9THRESHOLD DEVELOPMENT CO.15,2001982-12-31
3THRESHOLD DEVELOPMENT CO.15,2501981-09-28
4THRESHOLD DEVELOPMENT CO.15,2501981-09-28
5THRESHOLD DEVELOPMENT CO.25,2501981-09-28
2THRESHOLD DEVELOPMENT CO.15,2501981-07-07
1THRESHOLD-BLOCKER VENTURE15,2501980-08-19
EOF // data source: Texas Railroad Commission // 2026