Producción por operador
Operador	Petroleo				Gas natural
	1/2005		2/2005		1/2005		2/2005
	m3/día	%	m3/día	%	Mm3/día	%	Mm3/día	%
YPF S.A.	44,689	41.47	44,065	40.93	43,357	31.14	40,555	29.84
PAN AMERICAN	16,383	15.20	16,540	15.36	16,976	12.19	17,430	12.82
PESA (PETROBRAS E.S.A.)	10,855	10.07	10,962	10.18	13,548	9.73	13,010	9.57
CHEVRON SAN JORGE S.A.	9,731	9.03	9,994	9.28	2,899	2.08	2,897	2.13
TECPETROL S.A.	5,286	4.90	5,344	4.96	6,936	4.98	6,733	4.95
VINTAGE OIL	4,811	4.46	5,206	4.84	1,542	1.11	1,475	1.09
TOTAL AUSTRAL S.A.	4,183	3.88	4,105	3.81	31,632	22.72	31,933	23.50
SIPETROL S.A.	2,532	2.35	2,429	2.26	3,045	2.19	2,610	1.92
PLUSPETROL S.A.	2,289	2.12	2,230	2.07	11,973	8.60	11,902	8.76
CAPSA CAPEX	1,937	1.80	2,010	1.87	2,644	1.90	2,547	1.87
PETROLERA ENTRE LOMAS S.A.	1,630	1.51	1,634	1.52	1,074	0.77	1,035	0.76
PIONEER NAT.RESOURCES ARG.S.A.	1,217	1.13	1,154	1.07	2,632	1.89	2,727	2.01
CHAÑARES HERRADOS S.A.	370	0.34	352	0.33	14	0.01	13	0.01
PET. SUDAMERICANOS NECON-UTE	286	0.27	287	0.27	174	0.13	172	0.13
CENTRAL RESOURCE INC	253	0.23	259	0.24	20	0.01	20	0.01
ROCH S.A.	241	0.22	242	0.22	344	0.25	328	0.24
PETROQUIMICA COM. RIVADAVIA S.A.	160	0.15	229	0.21	248	0.18	325	0.24
PETROLERA SAN JOSE S.R.L.	184	0.17	184	0.17	15	0.01	15	0.01
RIO ALTO	299	0.28	0	0.00	0	0.00	0	0.00
COLHUE HUAPI S.A.	95	0.09	96	0.09	18	0.01	18	0.01
CLEAR S.R.L. Y PETROMINERA CHUBUT	66	0.06	61	0.06	9	0.01	9	0.01
RME ARGENTINA S.A.	51	0.05	61	0.06	6	0.00	8	0.01
OILGENER ARGENTINA Ltd.	47	0.04	46	0.04	5	0.00	5	0.00
MISAHAR ARGENTINA	44	0.04	44	0.04	2	0.00	2	0.00
GAS MEDANITO S.A.	39	0.04	47	0.04	62	0.04	80	0.06
EPP PETROLEO S.A.	30	0.03	32	0.03	4	0.00	4	0.00
C.G.C. S.A.	21	0.02	18	0.02	54	0.04	49	0.04
DONG WON CORPORATION	18	0.02	16	0.01	0	0.00	0	0.00
TECNICAGUA S.A.	11	0.01	11	0.01	7	0.01	7	0.01
INGENIERIA SIMA S.A.	6	0.01	6	0.01	0	0.00	0	0.00
Totales	107,764	100.00	107,664	100.00	139,238	100.00	135,907	100.00