Complex sentence: Known also as the Gainsborough-Beckingham oil field, production is near the RSPB Beckingham Marshes nature reserve with daily production of 300 barrels of crude oil and 1 million cubic feet of natural gas.
Split into simpler sentences: Known also as the Gainsborough-Beckingham oil field. Production is near the Beckingham Marshes' RSPB nature reserve with daily production of 300 barrels of crude oil and 1 million cubic feet of natural gas.