The Beatrice Field is located in Block 11/30 in the U.K. sector of the North Sea. The field is 14 mi (22 km) from the Scottish coast. The water depth is 160 ft (49 m).

In August 1976, well 11/30-1, the seventh wildcat well in the subbasin struck oil at about 6,000 ft (1,829 m) in an 831 ft (253 m) gross-pay column, at a time when most companies had written off the inner Moray Firth as a major oil province. The well produced an aggregate of 6,060 b/d (38° API) with a low GOR. The crude, though light and sweet, has a high wax content (17%) and high pour point (65°F).

Four more wells, three productive and one dry, have delineated the 4,271 acre field in which there are an estimated 476 million bbl of oil in place, 162 million bbl (34%) recoverable.

The stratigraphy and petrology of the field is described with emphasis on the alluvial to marine Jurassic (Sinemurian-Callovian) sandstone/shale reservoir sequence. Stratigraphic markers within the sequence are identified and related to the outcrops fringing the Moray Firth and an outline of the growth of the elongate fault bounded anticlinal trap is given. A summary of the reservoir characteristics and a review of the present and future field development are included.