Producción por operador
Operador	Petroleo				Gas natural
	4/2004		5/2004		4/2004		5/2004
	m3/día	%	m3/día	%	Mm3/día	%	Mm3/día	%
YPF S.A.	45,615	41.61	49,212	43.25	44,874	31.41	50,114	33.42
PAN AMERICAN	15,957	14.56	16,514	14.51	17,670	12.37	18,107	12.08
PETROBRAS ENERGIA S.A.	11,918	10.87	11,429	10.05	10,071	7.05	10,132	6.76
CHEVRON SAN JORGE S.A.	9,934	9.06	9,743	8.56	3,391	2.37	3,453	2.30
TECPETROL S.A.	5,055	4.61	5,018	4.41	7,703	5.39	7,917	5.28
TOTAL AUSTRAL S.A.	4,413	4.03	4,395	3.86	31,222	21.86	31,648	21.11
VINTAGE OIL	3,781	3.45	4,639	4.08	1,230	0.86	1,484	0.99
SIPETROL S.A.	2,884	2.63	2,886	2.54	3,016	2.11	3,142	2.10
PLUSPETROL S.A.	2,374	2.17	2,330	2.05	12,839	8.99	12,275	8.19
CAPSA CAPEX	2,171	1.98	2,109	1.85	2,705	1.89	2,940	1.96
PETROLERA PEREZ COMPANC S.A.	1,565	1.43	1,575	1.38	992	0.69	995	0.66
PIONEER NAT.RESOURCES ARG.S.A.	1,278	1.17	1,263	1.11	2,245	1.57	2,700	1.80
CHAÑARES HERRADOS S.A.	419	0.38	420	0.37	12	0.01	12	0.01
RIO ALTO	357	0.33	345	0.30	0	0.00	5	0.00
PETR. SANTA FE S.R.L	351	0.32	340	0.30	3,843	2.69	3,874	2.58
PET. SUDAMERICANOS NECON-UTE	281	0.26	265	0.23	221	0.15	225	0.15
CENTRAL RESOURCE INC	274	0.25	258	0.23	22	0.02	21	0.01
ROCH S.A.	236	0.22	256	0.23	328	0.23	372	0.25
PETROLERA SAN JOSE S.R.L.	173	0.16	172	0.15	16	0.01	16	0.01
PETROQUIMICA COM. RIVADAVIA S.A.	145	0.13	153	0.13	232	0.16	266	0.18
COLHUE HUAPI S.A.	104	0.09	100	0.09	18	0.01	17	0.01
RME ARGENTINA S.A.	58	0.05	57	0.05	5	0.00	5	0.00
CLEAR S.R.L. Y PETROMINERA CHUBUT	44	0.04	56	0.05	20	0.01	19	0.01
MISAHAR ARGENTINA	47	0.04	46	0.04	2	0.00	2	0.00
INGENIERIA ALPA S.A.	47	0.04	45	0.04	19	0.01	19	0.01
GAS MEDANITO S.A.	35	0.03	39	0.03	94	0.07	125	0.08
EPP PETROLEO S.A.	25	0.02	30	0.03	0	0.00	0	0.00
C.G.C. S.A.	21	0.02	22	0.02	50	0.03	48	0.03
DONG WON CORPORATION	21	0.02	20	0.02	0	0.00	0	0.00
OILGENER ARGENTINA Ltd.	17	0.02	16	0.01	4	0.00	4	0.00
TECNICAGUA S.A.	14	0.01	15	0.01	8	0.01	8	0.01
INGENIERIA SIMA S.A.	7	0.01	6	0.01	0	0.00	0	0.00
Totales	109,620	100.00	113,775	100.00	142,852	100.00	149,944	100.00