Producción por operador
Operador	Petroleo				Gas natural
	11/2005		12/2005		11/2005		12/2005
	m3/día	%	m3/día	%	Mm3/día	%	Mm3/día	%
YPF S.A.	41,668	40.32	41,763	40.19	39,032	28.32	37,426	27.95
PAN AMERICAN	16,397	15.87	17,284	16.63	18,966	13.76	18,511	13.82
PESA (PETROBRAS E.S.A.)	9,620	9.31	9,701	9.34	11,239	8.15	12,942	9.66
CHEVRON SAN JORGE S.A.	9,163	8.87	8,680	8.35	2,693	1.95	2,617	1.95
VINTAGE OIL	5,934	5.74	5,891	5.67	1,433	1.04	1,361	1.02
TECPETROL S.A.	5,080	4.92	5,232	5.04	6,532	4.74	6,447	4.81
TOTAL AUSTRAL S.A.	3,919	3.79	3,464	3.33	34,622	25.12	30,911	23.08
PLUSPETROL S.A.	2,283	2.21	2,299	2.21	13,213	9.59	13,286	9.92
SIPETROL ARGENTINA S.A.	1,896	1.83	1,989	1.91	1,843	1.34	2,202	1.64
PETROLERA ENTRE LOMAS S.A.	1,849	1.79	1,816	1.75	1,126	0.82	1,102	0.82
CAPSA CAPEX	1,835	1.78	1,788	1.72	2,677	1.94	2,630	1.96
PIONEER NAT.RESOURCES ARG.S.A.	1,103	1.07	1,049	1.01	3,266	2.37	3,210	2.40
PETROQUIMICA COM. RIVADAVIA S.A.	712	0.69	761	0.73	444	0.32	512	0.38
CHAÑARES HERRADOS S.A.	430	0.42	485	0.47	16	0.01	18	0.01
PET. SUDAMERICANOS NECON-UTE	332	0.32	334	0.32	167	0.12	147	0.11
CENTRAL RESOURCES INC	242	0.23	236	0.23	21	0.02	22	0.02
ROCH S.A.	240	0.23	237	0.23	290	0.21	307	0.23
PETRO ANDINA RESOURCES LTD.	147	0.14	150	0.14	0	0.00	0	0.00
RME ARGENTINA S.A.	150	0.15	139	0.13	36	0.03	45	0.03
INGENIERIA ALPA S.A.	55	0.05	158	0.15	37	0.03	39	0.03
COLHUE HUAPI S.A.	88	0.08	102	0.10	15	0.01	15	0.01
PETROLERA SAN JOSE S.R.L.	0	0.00	125	0.12	0	0.00	10	0.01
CLEAR S.R.L. Y PETROMINERA CHUBUT	54	0.05	63	0.06	46	0.03	51	0.04
OILGENER ARGENTINA Ltd.	33	0.03	55	0.05	5	0.00	5	0.00
GAS MEDANITO S.A.	38	0.04	36	0.04	61	0.04	59	0.04
EPP PETROLEO S.A.	28	0.03	25	0.02	0	0.00	0	0.00
DONG WON CORPORATION	14	0.01	16	0.02	0	0.00	0	0.00
CGC	9	0.01	11	0.01	31	0.02	33	0.02
TECNICAGUA S.A.	10	0.01	8	0.01	6	0.00	5	0.00
INGENIERIA SIMA S.A.	4	0.00	4	0.00	13	0.01	0	0.00
APCO ARGENTINA	3	0.00	3	0.00	0	0.00	0	0.00
Totales	103,336	100.00	103,905	100.00	137,831	100.00	133,915	100.00