Producción por operador
Operador	Petroleo				Gas natural
	4/2009		5/2009		4/2009		5/2009
	m3/día	%	m3/día	%	Mm3/día	%	Mm3/día	%
YPF S.A.	35,140	34.50	34,417	34.10	35,961	26.54	34,956	25.82
PAN AMERICAN	18,133	17.80	18,501	18.33	16,754	12.37	17,455	12.89
CHEVRON SAN JORGE S.A.	7,521	7.38	7,336	7.27	2,057	1.52	1,827	1.35
PESA (PETROBRAS E.S.A.)	7,024	6.90	6,668	6.61	13,870	10.24	12,545	9.27
OCCIDENTAL EXPLORATION INC.	6,483	6.36	7,036	6.97	2,048	1.51	2,009	1.48
TECPETROL S.A.	4,530	4.45	4,505	4.46	5,035	3.72	5,017	3.71
PETRO ANDINA RESOURCES LTD.	4,446	4.36	4,253	4.21	154	0.11	132	0.10
TOTAL AUSTRAL S.A.	3,430	3.37	3,493	3.46	34,627	25.56	35,825	26.46
PETROLERA ENTRE LOMAS S.A.	2,217	2.18	2,176	2.16	987	0.73	1,000	0.74
PLUSPETROL S.A.	2,181	2.14	2,037	2.02	4,142	3.06	4,291	3.17
CAPSA CAPEX	1,891	1.86	1,958	1.94	2,080	1.53	1,987	1.47
ENAP SIPETROL ARGENTINA S.A.	1,787	1.75	1,611	1.60	2,070	1.53	1,907	1.41
APACHE ENERGIA ARGENTINA S.R.L	1,325	1.30	1,245	1.23	3,846	2.84	3,804	2.81
PETROQUIMICA COM. RIVADAVIA S.A.	1,229	1.21	1,156	1.15	659	0.49	674	0.50
PETROLERA LF COMPANY S.R.L	964	0.95	1,014	1.00	4,577	3.38	4,455	3.29
PETROLIFERA P. (AMERICAS) LIMITED	743	0.73	725	0.72	233	0.17	229	0.17
CHAÑARES HERRADOS S.A.	572	0.56	538	0.53	21	0.02	20	0.01
PLUSPETROL ENERGY S.A	320	0.31	364	0.36	4,969	3.67	5,817	4.30
ROCH S.A.	325	0.32	321	0.32	874	0.64	864	0.64
PETROLERA EL TREBOL	300	0.29	288	0.29	7	0.01	7	0.01
PET. SUDAMERICANOS NECON-UTE	240	0.24	263	0.26	29	0.02	29	0.02
CENTRAL INTERNATIONAL CORPORATION	199	0.20	182	0.18	20	0.02	20	0.02
GRAN TIERRA ENERGY ARGENTINA S.A.	177	0.17	177	0.18	12	0.01	17	0.01
MEDANITO S.A.	147	0.14	134	0.13	289	0.21	326	0.24
APACHE PETROLERA ARGENTINA S.A.	117	0.11	129	0.13	20	0.01	20	0.01
PETROLERA SAN JOSE S.R.L.	89	0.09	94	0.09	8	0.01	8	0.01
DAPETROL S.A	77	0.08	76	0.08	0	0.00	0	0.00
COLHUE HUAPI S.A.	73	0.07	75	0.07	17	0.01	17	0.01
CRI HOLDING INC; SUCURSAL ARGENTINA	33	0.03	35	0.03	1	0.00	1	0.00
EPSUR S.A	30	0.03	29	0.03	11	0.01	11	0.01
INGENIERIA ALPA S.A.	27	0.03	27	0.03	3	0.00	3	0.00
CENTRAL PATAGONIA S.R.L.	22	0.02	20	0.02	0	0.00	0	0.00
CGC	21	0.02	19	0.02	43	0.03	40	0.03
CLEAR S.R.L.	17	0.02	16	0.02	17	0.01	20	0.01
GRECOIL Y CIA. SRL	17	0.02	13	0.01	1	0.00	0	0.00
GEOPARK ARGENTINA LIMITED (SUC.ARG)	9	0.01	10	0.01	4	0.00	4	0.00
MISAHAR ARGENTINA	1	0.00	0	0.00	0	0.00	0	0.00
APCO ARGENTINA	0	0.00	0	0.00	0	0.00	0	0.00
GOLDEN OIL CORPORATION SUC.ARG.	0	0.00	0	0.00	0	0.00	0	0.00
PETROLERA PIEDRA DEL AGUILA	0	0.00	0	0.00	36	0.03	32	0.02
Totales	101,858	100.00	100,941	100.00	135,483	100.00	135,368	100.00