Producción por operador
Operador	Petroleo				Gas natural
	3/2004		4/2004		3/2004		4/2004
	m3/día	%	m3/día	%	Mm3/día	%	Mm3/día	%
YPF S.A.	46,140	42.08	45,615	41.61	44,610	31.68	44,874	31.41
PAN AMERICAN	15,750	14.36	15,957	14.56	17,452	12.39	17,670	12.37
PETROBRAS ENERGIA S.A.	11,572	10.55	11,918	10.87	10,040	7.13	10,071	7.05
CHEVRON SAN JORGE S.A.	9,938	9.06	9,934	9.06	3,564	2.53	3,391	2.37
TECPETROL S.A.	5,091	4.64	5,055	4.61	7,960	5.65	7,703	5.39
TOTAL AUSTRAL S.A.	4,368	3.98	4,413	4.03	30,694	21.80	31,222	21.86
VINTAGE OIL	3,775	3.44	3,781	3.45	1,166	0.83	1,230	0.86
SIPETROL S.A.	2,965	2.70	2,884	2.63	2,803	1.99	3,016	2.11
PLUSPETROL S.A.	2,313	2.11	2,374	2.17	12,578	8.93	12,839	8.99
CAPSA CAPEX	2,162	1.97	2,171	1.98	2,637	1.87	2,705	1.89
PETROLERA PEREZ COMPANC S.A.	1,593	1.45	1,565	1.43	965	0.69	992	0.69
PIONEER NAT.RESOURCES ARG.S.A.	1,330	1.21	1,278	1.17	2,077	1.47	2,245	1.57
CHAÑARES HERRADOS S.A.	411	0.38	419	0.38	12	0.01	12	0.01
RIO ALTO	353	0.32	357	0.33	0	0.00	0	0.00
PETR. SANTA FE S.R.L	358	0.33	351	0.32	3,163	2.25	3,843	2.69
PET. SUDAMERICANOS NECON-UTE	269	0.25	281	0.26	224	0.16	221	0.15
CENTRAL RESOURCE INC	226	0.21	274	0.25	21	0.01	22	0.02
ROCH S.A.	255	0.23	236	0.22	347	0.25	328	0.23
PETROLERA SAN JOSE S.R.L.	178	0.16	173	0.16	17	0.01	16	0.01
PETROQUIMICA COM. RIVADAVIA S.A.	154	0.14	145	0.13	267	0.19	232	0.16
COLHUE HUAPI S.A.	105	0.10	104	0.09	18	0.01	18	0.01
RME ARGENTINA S.A.	58	0.05	58	0.05	5	0.00	5	0.00
MISAHAR ARGENTINA	61	0.06	47	0.04	3	0.00	2	0.00
CLEAR S.R.L. Y PETROMINERA CHUBUT	48	0.04	44	0.04	22	0.02	20	0.01
INGENIERIA ALPA S.A.	45	0.04	47	0.04	29	0.02	19	0.01
GAS MEDANITO S.A.	40	0.04	35	0.03	72	0.05	94	0.07
EPP PETROLEO S.A.	26	0.02	25	0.02	0	0.00	0	0.00
DONG WON CORPORATION	20	0.02	21	0.02	0	0.00	0	0.00
C.G.C. S.A.	19	0.02	21	0.02	49	0.04	50	0.03
OILGENER ARGENTINA Ltd.	16	0.01	17	0.02	4	0.00	4	0.00
TECNICAGUA S.A.	15	0.01	14	0.01	8	0.01	8	0.01
INGENIERIA SIMA S.A.	7	0.01	7	0.01	0	0.00	0	0.00
Totales	109,660	100.00	109,620	100.00	140,806	100.00	142,852	100.00