<Dd> <Dl> <Dd> Example: Offshore oil / gas production facilities, Drilling rigs, intervention vessel . </Dd> </Dl> </Dd> <Dl> <Dd> Example: Offshore oil / gas production facilities, Drilling rigs, intervention vessel . </Dd> </Dl> <Dd> Example: Offshore oil / gas production facilities, Drilling rigs, intervention vessel . </Dd>

Define upstream downstream and midstream in oil and gas