H	059	01/01/2005	03/31/2005	05/15/2005	O	Northern Natural Gas 	1111 South 103rd 	Omaha, NE  68124			Patrick M. Brennan   (402) 398-7101	
DH	059	01/2005	
D	1	Total Sales	0	0	0	0	0	 
D	2.001	TF	63026	0	106	41281	41387	 
D	2.002	TFX	42420	0	75	23258	23333	 
D	2.003	GS-T	17	0	0	12	12	 
D	2.004	TI	5201	0	12	980	992	 
D	2.005	LFT	0	0	0	0	0	 
D	2.006	SMS	0	0	0	695	695	 
D	3	Total Transportation	110664	0	193	66226	66419	 
D	4.001	FDD-1	9229	0	0	1156	1156	 
D	4.002	IDD-1	2520	0	0	341	341	 
D	4.003	PDD-1	9180	0	0	1758	1758	 
D	5	Total Storage	20929	0	0	3255	3255	 
D	7	Gathering-Firm	0	0	0	0	0	 
D	8	Gathering-Interruptible	0	0	0	0	0	 
D	10	Products Sales and Extraction (490-492)	0	0	0	507	507	 
D	11	Rents (493 and 494)	0	0	0	0	0	 
D	12	Other Gas Revenues (495)	0	0	0	180	180	 
DH	059	02/2005	
D	1	Total Sales	0	0	0	0	0	 
D	2.001	TF	41479	0	119	37171	37290	 
D	2.002	TFX	38511	0	80	23272	23352	 
D	2.003	GS-T	30	0	0	20	20	 
D	2.004	TI	5076	0	11	1265	1276	 
D	2.005	LFT	0	0	0	0	0	 
D	2.006	SMS	0	0	0	853	853	 
D	3	Total Transportation	85096	0	210	62581	62791	 
D	4.001	FDD-1	13312	0	0	1590	1590	 
D	4.002	IDD-1	1430	0	0	195	195	 
D	4.003	PDD-1	9703	0	0	1191	1191	 
D	5	Total Storage	24445	0	0	2976	2976	 
D	7	Gathering-Firm	0	0	0	0	0	 
D	8	Gathering-Interruptible	0	0	0	0	0	 
D	10	Products Sales and Extraction (490-492)	0	0	0	705	705	 
D	11	Rents (493 and 494)	0	0	0	0	0	 
D	12	Other Gas Revenues (495)	0	0	0	163	163	 
DH	059	03/2005	
D	1	Total Sales	0	0	0	0	0	 
D	2.001	TF	40843	0	91	39497	39588	 
D	2.002	TFX	36092	0	63	22293	22356	 
D	2.003	GS-T	0	0	0	0	0	 
D	2.004	TI	6303	0	8	904	912	 
D	2.005	LFT	0	0	0	0	0	 
D	2.006	SMS	0	0	0	700	700	 
D	3	Total Transportation	83238	0	162	63394	63556	 
D	4.001	FDD-1	10904	0	0	1663	1663	 
D	4.002	IDD-1	786	0	0	307	307	 
D	4.003	PDD-1	3339	0	0	1242	1242	 
D	5	Total Storage	15029	0	0	3212	3212	 
D	7	Gathering-Firm	0	0	0	0	0	 
D	8	Gathering-Interruptible	0	0	0	0	0	 
D	10	Products Sales and Extraction (490-492)	0	0	0	745	745	 
D	11	Rents (493 and 494)	0	0	0	0	0	 
D	12	Other Gas Revenues (495)	0	0	0	144	144	 
