Producción por operador
Operador	Petroleo				Gas natural
	3/2005		4/2005		3/2005		4/2005
	m3/día	%	m3/día	%	Mm3/día	%	Mm3/día	%
YPF S.A.	43,866	40.77	42,953	40.32	37,273	28.01	42,480	31.00
PAN AMERICAN	16,803	15.62	17,216	16.16	17,914	13.46	18,153	13.25
PESA (PETROBRAS E.S.A.)	10,643	9.89	10,384	9.75	13,098	9.84	13,173	9.61
CHEVRON SAN JORGE S.A.	10,024	9.32	9,716	9.12	2,923	2.20	2,937	2.14
VINTAGE OIL	5,335	4.96	5,737	5.39	1,486	1.12	1,558	1.14
TECPETROL S.A.	5,344	4.97	5,230	4.91	6,705	5.04	6,732	4.91
TOTAL AUSTRAL S.A.	4,028	3.74	3,669	3.44	31,454	23.63	29,621	21.62
SIPETROL S.A.	2,446	2.27	2,420	2.27	2,700	2.03	2,897	2.11
PLUSPETROL S.A.	2,213	2.06	2,248	2.11	11,924	8.96	11,766	8.59
CAPSA CAPEX	1,918	1.78	1,930	1.81	2,533	1.90	2,565	1.87
PETROLERA ENTRE LOMAS S.A.	1,643	1.53	1,699	1.59	1,050	0.79	1,038	0.76
PIONEER NAT.RESOURCES ARG.S.A.	1,195	1.11	1,224	1.15	2,847	2.14	2,890	2.11
PETROQUIMICA COM. RIVADAVIA S.A.	381	0.35	330	0.31	435	0.33	465	0.34
CHAÑARES HERRADOS S.A.	342	0.32	335	0.31	13	0.01	12	0.01
PET. SUDAMERICANOS NECON-UTE	290	0.27	295	0.28	204	0.15	185	0.13
CENTRAL RESOURCE INC	253	0.24	260	0.24	16	0.01	20	0.01
ROCH S.A.	253	0.24	256	0.24	320	0.24	348	0.25
PETROLERA SAN JOSE S.R.L.	170	0.16	135	0.13	14	0.01	11	0.01
RME ARGENTINA S.A.	74	0.07	132	0.12	9	0.01	18	0.01
COLHUE HUAPI S.A.	95	0.09	92	0.09	18	0.01	18	0.01
CLEAR S.R.L. Y PETROMINERA CHUBUT	54	0.05	53	0.05	9	0.01	9	0.01
GAS MEDANITO S.A.	48	0.04	48	0.05	76	0.06	79	0.06
MISAHAR ARGENTINA	40	0.04	40	0.04	1	0.00	2	0.00
OILGENER ARGENTINA Ltd.	32	0.03	30	0.03	5	0.00	5	0.00
EPP PETROLEO S.A.	32	0.03	28	0.03	4	0.00	4	0.00
VENECO PATAGONIA LTD	22	0.02	23	0.02	0	0.00	0	0.00
C.G.C. S.A.	19	0.02	18	0.02	50	0.04	44	0.03
DONG WON CORPORATION	13	0.01	9	0.01	0	0.00	0	0.00
TECNICAGUA S.A.	9	0.01	11	0.01	7	0.01	6	0.00
INGENIERIA SIMA S.A.	6	0.01	5	0.01	0	0.00	0	0.00
APCO ARGENTINA	0	0.00	0	0.00	0	0.00	0	0.00
Totales	107,590	100.00	106,527	100.00	133,085	100.00	137,035	100.00