Producción por operador
Operador	Petroleo				Gas natural
	3/2011		4/2011		3/2011		4/2011
	m3/día	%	m3/día	%	Mm3/día	%	Mm3/día	%
YPF S.A.	33,722	35.53	24,342	30.49	29,987	24.67	27,656	22.97
PAN AMERICAN	17,851	18.81	16,913	21.18	15,289	12.58	14,414	11.97
PETROBRAS ARGENTINA S.A.	6,117	6.44	6,045	7.57	11,178	9.20	10,873	9.03
CHEVRON SAN JORGE S.A.	6,104	6.43	5,950	7.45	746	0.61	716	0.59
PETRO ANDINA RESOURCES LTD.	4,611	4.86	4,619	5.79	205	0.17	203	0.17
TECPETROL S.A.	3,966	4.18	3,912	4.90	4,002	3.29	4,002	3.32
SINOPEC ARGENTINA EXPLORATION INC	6,028	6.35	1,076	1.35	1,982	1.63	260	0.22
TOTAL AUSTRAL S.A.	2,741	2.89	3,207	4.02	33,958	27.94	37,904	31.48
PETROLERA ENTRE LOMAS S.A.	2,211	2.33	2,305	2.89	1,208	0.99	1,195	0.99
PLUSPETROL S.A.	1,920	2.02	1,924	2.41	3,960	3.26	4,125	3.43
COMPAÑIAS ASOCIADAS PETROLERAS S.A.	1,802	1.90	1,839	2.30	62	0.05	64	0.05
PETROQUIMICA COM. RIVADAVIA S.A.	1,263	1.33	1,299	1.63	670	0.55	696	0.58
ENAP SIPETROL ARGENTINA S.A.	1,227	1.29	1,174	1.47	819	0.67	826	0.69
APACHE ENERGIA ARGENTINA S.R.L	986	1.04	1,013	1.27	4,025	3.31	4,178	3.47
PETROLERA LF COMPANY S.R.L	847	0.89	800	1.00	4,358	3.59	4,376	3.63
ROCH S.A.	659	0.69	663	0.83	1,798	1.48	1,769	1.47
CHAÑARES HERRADOS S.A.	496	0.52	479	0.60	20	0.02	19	0.02
PETROLIFERA P. (AMERICAS) LIMITED	304	0.32	287	0.36	131	0.11	130	0.11
PLUSPETROL ENERGY S.A	283	0.30	276	0.35	4,386	3.61	4,314	3.58
PETROLERA EL TREBOL	270	0.28	283	0.35	9	0.01	8	0.01
PET. SUDAMERICANOS NECON-UTE	234	0.25	230	0.29	28	0.02	28	0.02
CENTRAL INTERNATIONAL CORPORATION	186	0.20	179	0.22	17	0.01	18	0.02
MEDANITO S.A.	174	0.18	170	0.21	453	0.37	462	0.38
CAPEX S.A.	122	0.13	125	0.16	1,888	1.55	1,866	1.55
GRAN TIERRA ENERGY ARGENTINA S.R.L.	116	0.12	109	0.14	19	0.02	18	0.02
APACHE PETROLERA ARGENTINA S.A.	98	0.10	102	0.13	43	0.04	38	0.03
COLHUE HUAPI S.A.	89	0.09	82	0.10	17	0.01	17	0.01
SAN JORGE PETROLEUM S.A	78	0.08	91	0.11	119	0.10	122	0.10
ENARSA	82	0.09	80	0.10	5	0.00	4	0.00
PETROLERA SAN JOSE S.R.L.	75	0.08	74	0.09	6	0.00	6	0.00
DAPETROL S.A	58	0.06	53	0.07	0	0.00	0	0.00
INGENIERIA ALPA S.A.	58	0.06	8	0.01	8	0.01	0	0.00
EPSUR S.A	32	0.03	31	0.04	10	0.01	10	0.01
CGC	28	0.03	21	0.03	47	0.04	48	0.04
CENTRAL PATAGONIA S.R.L.	25	0.03	16	0.02	0	0.00	0	0.00
CRI HOLDING INC; SUCURSAL ARGENTINA	18	0.02	19	0.02	0	0.00	0	0.00
GRECOIL Y CIA. SRL	15	0.02	18	0.02	1	0.00	1	0.00
GEOPARK ARGENTINA LIMITED (SUC.ARG)	11	0.01	12	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	5	0.01	0	0.00	0	0.00
MISAHAR ARGENTINA	0	0.00	1	0.00	0	0.00	2	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	69	0.06	39	0.03
PETROLERA PIEDRA DEL AGUILA	0	0.00	0	0.00	14	0.01	0	0.00
Totales	94,918	100.00	79,836	100.00	121,537	100.00	120,410	100.00