Union was awarded Parcel 14 by the State of California in 1962 for a bonus of $6,110,000. In 1964 Union bought the southern part of the adjoining Parcel 20A from the Signal Oil Company. Development of both parcels is complete and resulted in a westward extension of the offshore Huntington Beach oil field.

Parcels 14 and 20A are located on the west-plunging nose of a large east-west-trending asymmetrical anticline. Oil is produced from upper Miocene division "C" sandstones, defined as the Upper Main (UM) and Main No. 1 (M-1) zones. Both of these productive sandstone zones thin and grade laterally into shale in an easterly direction, up the plunge of the anticline, forming a stratigraphic trap. Maximum net oil-bearing sandstone penetrated in wells is 512 feet.

Asymmetry of the structure is formed by a steep-dipping south flank, with a known maximum dip of 65°, and a shallow-dipping north flank averaging approximately 10°. The axis hades toward the north at approximately 70°.

Faulting on Parcels 14 and 20A is minor; two 50-foot normal faults have been mapped.

Thirty-eight wells have been drilled directionally and completed from Union's Platform Eva on 10-acre spacing. These wells are positioned on a five-spot water-flood pattern for future secondary operations.

An estimated 40 million barrels of 22° oil ultimately will be recovered from Parcels 14 and 20A by both primary and secondary recovery methods of depletion.

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