Producción por operador
Operador	Petroleo				Gas natural
	4/2010		5/2010		4/2010		5/2010
	m3/día	%	m3/día	%	Mm3/día	%	Mm3/día	%
YPF S.A.	34,050	34.52	34,160	34.70	33,006	25.96	32,918	24.85
PAN AMERICAN	18,586	18.84	18,245	18.53	16,022	12.60	16,500	12.46
CHEVRON SAN JORGE S.A.	6,884	6.98	6,750	6.86	754	0.59	739	0.56
OCCIDENTAL EXPLORATION INC.	6,286	6.37	6,349	6.45	1,829	1.44	1,984	1.50
PESA (PETROBRAS E.S.A.)	6,256	6.34	6,254	6.35	11,341	8.92	11,617	8.77
PETRO ANDINA RESOURCES LTD.	4,604	4.67	4,724	4.80	165	0.13	175	0.13
TECPETROL S.A.	4,146	4.20	4,086	4.15	4,267	3.36	4,217	3.18
TOTAL AUSTRAL S.A.	3,287	3.33	3,431	3.49	34,375	27.04	37,271	28.14
PETROLERA ENTRE LOMAS S.A.	2,277	2.31	2,330	2.37	952	0.75	1,002	0.76
PLUSPETROL S.A.	1,821	1.85	1,873	1.90	3,883	3.05	4,087	3.09
CAPSA CAPEX	1,854	1.88	1,793	1.82	2,015	1.59	2,054	1.55
ENAP SIPETROL ARGENTINA S.A.	1,771	1.80	1,763	1.79	2,108	1.66	2,336	1.76
PETROQUIMICA COM. RIVADAVIA S.A.	1,169	1.18	1,143	1.16	691	0.54	740	0.56
APACHE ENERGIA ARGENTINA S.R.L	1,069	1.08	1,039	1.06	3,428	2.70	3,679	2.78
PETROLERA LF COMPANY S.R.L	778	0.79	784	0.80	4,028	3.17	4,575	3.45
ROCH S.A.	799	0.81	742	0.75	1,963	1.54	1,930	1.46
CHAÑARES HERRADOS S.A.	569	0.58	566	0.57	21	0.02	21	0.02
PETROLIFERA P. (AMERICAS) LIMITED	549	0.56	534	0.54	137	0.11	142	0.11
PLUSPETROL ENERGY S.A	326	0.33	346	0.35	5,261	4.14	5,598	4.23
PETROLERA EL TREBOL	285	0.29	288	0.29	8	0.01	9	0.01
PET. SUDAMERICANOS NECON-UTE	252	0.26	249	0.25	29	0.02	29	0.02
CENTRAL INTERNATIONAL CORPORATION	193	0.20	190	0.19	19	0.02	19	0.01
GRAN TIERRA ENERGY ARGENTINA S.A.	134	0.14	121	0.12	24	0.02	23	0.02
MEDANITO S.A.	131	0.13	123	0.12	332	0.26	358	0.27
SAN JORGE PETROLEUM S.A	107	0.11	99	0.10	255	0.20	239	0.18
PETROLERA SAN JOSE S.R.L.	89	0.09	84	0.08	7	0.01	7	0.01
DAPETROL S.A	80	0.08	79	0.08	0	0.00	0	0.00
APACHE PETROLERA ARGENTINA S.A.	78	0.08	80	0.08	27	0.02	24	0.02
COLHUE HUAPI S.A.	77	0.08	78	0.08	17	0.01	17	0.01
INGENIERIA ALPA S.A.	30	0.03	31	0.03	3	0.00	3	0.00
GRECOIL Y CIA. SRL	21	0.02	22	0.02	1	0.00	1	0.00
CRI HOLDING INC; SUCURSAL ARGENTINA	22	0.02	19	0.02	5	0.00	1	0.00
CENTRAL PATAGONIA S.R.L.	17	0.02	20	0.02	0	0.00	0	0.00
EPSUR S.A	5	0.01	23	0.02	1	0.00	7	0.01
CGC	13	0.01	14	0.01	40	0.03	40	0.03
INGENIERIA SIMA S.A.	14	0.01	9	0.01	0	0.00	0	0.00
GEOPARK ARGENTINA LIMITED (SUC.ARG)	10	0.01	11	0.01	3	0.00	3	0.00
MISAHAR ARGENTINA	1	0.00	0	0.00	1	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	66	0.05	58	0.04
PETROLERA PIEDRA DEL AGUILA	0	0.00	0	0.00	39	0.03	35	0.03
Totales	98,643	100.00	98,450	100.00	127,125	100.00	132,459	100.00