Oil and gas drilling; Drilling for oil and gas; Extraction of oil and gas

'drill':4,5 'extract':10 'gas':3,9,14 'oil':1,7,12

Exploration and searching of oil and gas; Exploration services in the field of the oil, gas and mining industries

'explor':1,8 'field':12 'gas':7,16 'industri':19 'mine':18 'oil':5,15 'search':3 'servic':9

Managing the exploration, production and operations of natural gas and oil properties for others

'explor':3 'gas':9 'manag':1 'natur':8 'oil':11 'oper':6 'other':14 'product':4 'properti':12

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Owners