Producción por operador
Operador	Petroleo				Gas natural
	4/2005		5/2005		4/2005		5/2005
	m3/día	%	m3/día	%	Mm3/día	%	Mm3/día	%
YPF S.A.	44,141	40.98	44,247	40.93	42,465	30.99	47,205	32.00
PAN AMERICAN	17,216	15.98	17,184	15.90	18,153	13.25	18,432	12.50
PESA (PETROBRAS E.S.A.)	10,384	9.64	10,198	9.43	13,173	9.61	13,363	9.06
CHEVRON SAN JORGE S.A.	9,716	9.02	9,607	8.89	2,937	2.14	2,940	1.99
VINTAGE OIL	5,737	5.33	5,449	5.04	1,558	1.14	1,530	1.04
TECPETROL S.A.	5,230	4.86	5,180	4.79	6,732	4.91	6,783	4.60
TOTAL AUSTRAL S.A.	3,669	3.41	4,195	3.88	29,621	21.62	33,088	22.43
SIPETROL S.A.	2,420	2.25	2,465	2.28	2,897	2.11	2,969	2.01
PLUSPETROL S.A.	2,248	2.09	2,431	2.25	11,766	8.59	12,904	8.75
CAPSA CAPEX	1,930	1.79	1,905	1.76	2,565	1.87	2,906	1.97
PETROLERA ENTRE LOMAS S.A.	1,699	1.58	1,765	1.63	1,038	0.76	1,067	0.72
PIONEER NAT.RESOURCES ARG.S.A.	1,224	1.14	1,147	1.06	2,890	2.11	3,029	2.05
PETROQUIMICA COM. RIVADAVIA S.A.	330	0.31	461	0.43	465	0.34	456	0.31
CHAÑARES HERRADOS S.A.	335	0.31	327	0.30	12	0.01	12	0.01
PET. SUDAMERICANOS NECON-UTE	295	0.27	315	0.29	185	0.13	193	0.13
CENTRAL RESOURCES INC	260	0.24	260	0.24	20	0.01	20	0.01
ROCH S.A.	256	0.24	243	0.23	348	0.25	355	0.24
PETROLERA SAN JOSE S.R.L.	135	0.13	190	0.18	11	0.01	15	0.01
RME ARGENTINA S.A.	132	0.12	171	0.16	18	0.01	33	0.02
COLHUE HUAPI S.A.	92	0.09	93	0.09	18	0.01	16	0.01
CLEAR S.R.L. Y PETROMINERA CHUBUT	53	0.05	52	0.05	9	0.01	14	0.01
GAS MEDANITO S.A.	48	0.04	42	0.04	79	0.06	100	0.07
MISAHAR ARGENTINA	40	0.04	44	0.04	2	0.00	1	0.00
OILGENER ARGENTINA Ltd.	30	0.03	29	0.03	5	0.00	5	0.00
EPP PETROLEO S.A.	28	0.03	29	0.03	4	0.00	3	0.00
VENECO PATAGONIA LTD	23	0.02	23	0.02	0	0.00	0	0.00
C.G.C. S.A.	18	0.02	20	0.02	44	0.03	50	0.03
TECNICAGUA S.A.	11	0.01	11	0.01	6	0.00	7	0.00
DONG WON CORPORATION	9	0.01	10	0.01	0	0.00	0	0.00
INGENIERIA SIMA S.A.	5	0.00	5	0.00	0	0.00	0	0.00
APCO ARGENTINA	0	0.00	0	0.00	0	0.00	0	0.00
Totales	107,716	100.00	108,099	100.00	137,020	100.00	147,499	100.00