conducting classes, seminars and workshops in the field of technologies related to the exploration, production, transmission, storage, distribution and end-use of natural gas

'class':2 'conduct':1 'distribut':18 'end':21 'end-us':20 'explor':14 'field':8 'gas':25 'natur':24 'product':15 'relat':11 'seminar':3 'storag':17 'technolog':10 'transmiss':16 'use':22 'workshop':5

Printed instructional educational teaching materials in the field of natural gas, chemicals and refining

'chemic':12 'educ':3 'field':8 'gas':11 'instruct':2 'materi':5 'natur':10 'print':1 'refin':14 'teach':4

GATC

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