FLORIDA GEOLOGICAL SURVEY


 PRODUCTION

 Production figures for the Sunniland field for 1962, as submitted
by the Humble Oil and Refining Company operator, are:


 Month
January
February
March
April
May
June
July
August
September
October
November
December


Barrels
38,584
33,002
36,866
36,082
33,341
32,218
34,042
35,074
34,067
34,972
30,570
35,855
414,673


Production was obtained from 11 wells during the months of January
through part of July. During the remainder of the year only 10 wells
were on production as a result of the shutting in for workover operations
of the No. 8 Gulf Coast Realties Corporation well, which had developed
a casing leak.

 The cumulative total production from the field through December 31,
1962, was 7,247,361 barrels.


 PRESSURES

 Table 3 reveals that differential pressures push fluid levels far
 above the producing intervals in all of the Sunniland field wells. This
 table also shows that in 1958 the fluid levels, or the depths from which
 the wells are pumped, varied from about 1,550 to 4,034 feet of depth.
 Asa consequence the oil lifting cost is relatively low.

 ENERGY FOR WATER DRIVE

 The original bottom hole shut-in pressure in the Sunniland field,
 recorded before significant quantities of fluids were withdrawn, was