List of largest oil and gas companies by revenue

Country	Company Name	Revenue 2017 (US$ billion)	Revenue 2018 (US$ billion)
Saudi Arabia	Saudi Aramco	314.4	414.6
United Kingdom	Shell plc	265	396.5
China	China National Petroleum Corporation	299.1	392.9
United Kingdom	BP	222.8	303.73
United States	Exxon Mobil	268.9	290.2
France	Total SA	212	209.4
United States	Chevron Corporation	129.9	158.9
Russia	Lukoil	144.17	127.7
Russia	Gazprom	106.3	118.83
Russia	Rosneft	88.44	118.46
United States	Valero Energy	130.84	117.033
Iran	National Iranian Oil Company	110.00**
Japan	Eneos Holdings	90.67	103.13
United States	Phillips 66	102.35	102.354
China	China National Offshore Oil	98.53
United States	Marathon Petroleum	97.81	96.504
Brazil	Petrobras	88.8	95.6
Mexico	Pemex	70.6	85.4
Norway	Equinor	82.48	79.6
Kuwait	Kuwait Petroleum Corporation		79.45
Italy	Eni		76
Thailand	PTT	93.55	68.24
France	Engie	89.64	67.68
Azerbaijan	SOCAR	54.79	65.41
India	Indian Oil Corporation	81.55	65.10
India	Reliance Industries	73.10	64.60
Spain	Repsol	47.29	58.9
Indonesia	Pertamina	46	57.9
South Korea	GS Caltex	50.26
United States	Enterprise Products	47.95
Japan	Idemitsu Kosan	38.58	44.1
India	Bharat Petroleum	43.46	42.555 ^[1]
Austria	OMV Group		28.15
Algeria	Sonatrach	76.10**	39
United States	ConocoPhillips	29.11	38.727
India	Hindustan Petroleum	37.85	37.17^[2]
Poland	PKN Orlen	36.1
France/ United States	Schlumberger	35.47
Canada	Suncor Energy	34.66
Greece	Hellenic Petroleum	31.28
United Kingdom	Centrica	45.29	29.7
Greece	Motor Oil Hellas	28.98
Colombia	Ecopetrol	26.99
Malaysia	Petronas		26.92
Spain	CEPSA	26.90
Hungary	MOL	24.63
Venezuela	PDVSA	30	23.3