Producción por operador
Operador	Petroleo				Gas natural
	2/2011		3/2011		2/2011		3/2011
	m3/día	%	m3/día	%	Mm3/día	%	Mm3/día	%
YPF S.A.	34,217	35.83	33,722	35.56	30,382	24.61	29,987	24.67
PAN AMERICAN	17,826	18.67	17,851	18.82	15,437	12.51	15,289	12.58
CHEVRON SAN JORGE S.A.	6,203	6.50	6,104	6.44	725	0.59	746	0.61
PETROBRAS ARGENTINA S.A.	6,081	6.37	6,117	6.45	11,070	8.97	11,178	9.20
PETRO ANDINA RESOURCES LTD.	4,571	4.79	4,611	4.86	199	0.16	205	0.17
TECPETROL S.A.	3,934	4.12	3,966	4.18	3,941	3.19	4,002	3.29
SINOPEC ARGENTINA EXPLORATION INC	0	0.00	6,028	6.31	0	0.00	1,982	1.61
TOTAL AUSTRAL S.A.	3,086	3.23	2,741	2.89	35,579	28.82	33,958	27.94
OCCIDENTAL EXPLORATION INC.	5,918	6.20	0	0.00	1,998	1.62	0	0.00
PETROLERA ENTRE LOMAS S.A.	2,231	2.34	2,211	2.33	1,217	0.99	1,208	0.99
PLUSPETROL S.A.	1,863	1.95	1,920	2.02	3,944	3.20	3,960	3.26
COMPAÑIAS ASOCIADAS PETROLERAS S.A.	1,768	1.85	1,802	1.90	70	0.06	62	0.05
PETROQUIMICA COM. RIVADAVIA S.A.	1,244	1.30	1,263	1.33	699	0.57	670	0.55
ENAP SIPETROL ARGENTINA S.A.	1,239	1.30	1,227	1.29	864	0.70	819	0.67
APACHE ENERGIA ARGENTINA S.R.L	944	0.99	986	1.04	3,912	3.17	4,025	3.31
PETROLERA LF COMPANY S.R.L	819	0.86	847	0.89	4,089	3.31	4,358	3.59
ROCH S.A.	683	0.71	659	0.69	1,849	1.50	1,798	1.48
CHAÑARES HERRADOS S.A.	532	0.56	496	0.52	21	0.02	20	0.02
PETROLIFERA P. (AMERICAS) LIMITED	316	0.33	304	0.32	143	0.12	131	0.11
PLUSPETROL ENERGY S.A	288	0.30	283	0.30	4,497	3.64	4,386	3.61
PETROLERA EL TREBOL	278	0.29	270	0.29	9	0.01	9	0.01
PET. SUDAMERICANOS NECON-UTE	243	0.25	234	0.25	27	0.02	28	0.02
CENTRAL INTERNATIONAL CORPORATION	183	0.19	186	0.20	18	0.01	17	0.01
MEDANITO S.A.	174	0.18	174	0.18	447	0.36	453	0.37
CAPEX S.A.	123	0.13	122	0.13	1,915	1.55	1,888	1.55
GRAN TIERRA ENERGY ARGENTINA S.R.L.	121	0.13	116	0.12	19	0.02	19	0.02
APACHE PETROLERA ARGENTINA S.A.	94	0.10	98	0.10	65	0.05	43	0.04
COLHUE HUAPI S.A.	89	0.09	89	0.09	17	0.01	17	0.01
SAN JORGE PETROLEUM S.A	84	0.09	78	0.08	127	0.10	119	0.10
PETROLERA SAN JOSE S.R.L.	77	0.08	75	0.08	6	0.00	6	0.00
INGENIERIA ALPA S.A.	70	0.07	58	0.06	10	0.01	8	0.01
DAPETROL S.A	62	0.06	58	0.06	0	0.00	0	0.00
EPSUR S.A	32	0.03	32	0.03	10	0.01	10	0.01
CGC	32	0.03	28	0.03	52	0.04	47	0.04
CENTRAL PATAGONIA S.R.L.	17	0.02	25	0.03	0	0.00	0	0.00
CRI HOLDING INC; SUCURSAL ARGENTINA	17	0.02	18	0.02	0	0.00	0	0.00
GRECOIL Y CIA. SRL	13	0.01	15	0.02	1	0.00	1	0.00
GEOPARK ARGENTINA LIMITED (SUC.ARG)	11	0.01	11	0.01	2	0.00	2	0.00
INTERENERGY ARGENTINA S.A.	5	0.01	5	0.01	0	0.00	0	0.00
INGENIERIA SIMA S.A.	3	0.00	3	0.00	0	0.00	0	0.00
MISAHAR ARGENTINA	2	0.00	0	0.00	4	0.00	0	0.00
APCO ARGENTINA	0	0.00	0	0.00	0	0.00	0	0.00
ARPETROL ARGENTINA S.A	0	0.00	0	0.00	58	0.05	69	0.06
PETROLERA PIEDRA DEL AGUILA	0	0.00	0	0.00	22	0.02	14	0.01
Totales	95,490	100.00	94,836	100.00	123,445	100.00	121,532	100.00