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Gas Quality / Gas Quality By Date

Date Requested: Oct 18 2025 3:44 PM

Comments:

The data contained herein is preliminary data and therefore should be used for contemporaneous operational purposes only and may be subject to change at month-end. This data is provided to assist our customers in tracking their gas usage as closely as possible on a real-time basis. The information contained on this web page is not to be considered billable information. This data will be subject to additional verification and possible modification prior to billing.

The Btu specified is on a higher heating value (HHV) basis.
Gas constituents specified as percent (%) by volume.
Gas Quality information for the current Gas Day is updated for all location ID's after 11:00 a.m.
For Gas Quality by Date, any time can be specified, all historical data (93 days) is defaulted to current Gas Day.

TSP Name:

Northern Natural Gas Company

TSP:

784158214

Gas Quality by ID

Chromatograph Report For:

Date	BTU	CO2	N2	Gravity	Methane	Ethane	Propane	Ibutane	Nbutane	Ipentane	Npentane	C6	C7	H	Helium	Oxygen	H20


10/18/2025	1035.691	0.678	1.726	0.598	92.262	4.852	0.363	0.027	0.060	0.011	0.012	0.006	0.002
10/17/2025	1034.926	0.697	1.760	0.598	92.251	4.800	0.372	0.027	0.061	0.011	0.013	0.005	0.002
10/16/2025	1026.407	0.550	1.950	0.592	93.103	4.020	0.291	0.020	0.044	0.008	0.009	0.004	0.001
10/15/2025	1031.290	0.652	1.772	0.595	92.665	4.514	0.308	0.021	0.046	0.008	0.009	0.004	0.001
10/14/2025	1039.266	0.811	1.533	0.600	91.889	5.312	0.352	0.024	0.053	0.009	0.010	0.004	0.001
10/13/2025	1047.903	1.038	1.244	0.606	90.945	6.284	0.386	0.025	0.053	0.010	0.011	0.004	0.001
10/12/2025	1044.753	0.919	1.436	0.604	91.132	6.053	0.372	0.022	0.046	0.008	0.009	0.003	0.001
10/11/2025	1042.907	0.880	1.488	0.603	91.295	5.910	0.348	0.020	0.041	0.007	0.007	0.003	0.001
10/10/2025	1041.173	0.849	1.546	0.602	91.443	5.748	0.338	0.019	0.039	0.007	0.007	0.003	0.001
10/09/2025	1038.892	0.825	1.617	0.601	91.582	5.600	0.310	0.016	0.034	0.006	0.006	0.002	0.001
10/08/2025	1029.755	0.600	1.912	0.595	92.556	4.599	0.274	0.015	0.031	0.005	0.005	0.002	0.001
10/07/2025	1037.386	0.760	1.675	0.599	91.848	5.299	0.342	0.019	0.039	0.006	0.008	0.003	0.001
10/06/2025	1049.169	1.039	1.214	0.607	90.790	6.488	0.391	0.021	0.041	0.006	0.007	0.003	0.001
10/05/2025	1052.722	1.098	1.146	0.609	90.467	6.739	0.445	0.026	0.053	0.010	0.011	0.004	0.001
10/04/2025	1048.624	1.012	1.247	0.606	90.927	6.293	0.421	0.025	0.052	0.009	0.010	0.004	0.001
10/03/2025	1042.636	0.986	1.267	0.602	91.494	5.884	0.329	0.013	0.022	0.003	0.003	0.001	0.000
10/02/2025	1043.075	1.000	1.300	0.603	91.358	5.952	0.339	0.015	0.027	0.004	0.004	0.001	0.000
10/01/2025	1042.292	0.971	1.382	0.603	91.396	5.827	0.357	0.018	0.035	0.006	0.006	0.002	0.001
09/30/2025	1047.260	0.971	1.322	0.605	90.941	6.309	0.376	0.021	0.041	0.007	0.008	0.003	0.001
09/29/2025	1048.661	0.983	1.162	0.605	91.005	6.448	0.352	0.015	0.026	0.004	0.004	0.002	0.000
09/28/2025	1051.146	1.083	1.224	0.609	90.413	6.800	0.405	0.020	0.038	0.007	0.007	0.003	0.001
09/27/2025	1058.707	1.252	1.114	0.615	89.416	7.640	0.481	0.025	0.051	0.008	0.009	0.004	0.001
09/26/2025	1052.559	1.088	1.317	0.611	89.998	7.116	0.409	0.019	0.037	0.006	0.006	0.003	0.001
09/25/2025	1051.389	0.912	1.406	0.608	90.357	6.856	0.387	0.020	0.041	0.007	0.008	0.004	0.001
09/24/2025	1048.476	0.900	1.475	0.607	90.643	6.487	0.405	0.022	0.046	0.008	0.009	0.004	0.001
09/23/2025	1046.825	0.964	1.407	0.606	90.939	6.144	0.440	0.026	0.053	0.010	0.011	0.005	0.002
09/22/2025	1058.822	1.227	1.131	0.615	89.525	7.484	0.505	0.030	0.065	0.011	0.013	0.006	0.002
09/21/2025	1053.909	1.112	1.334	0.612	89.885	7.088	0.465	0.028	0.059	0.010	0.012	0.005	0.001
09/20/2025	1052.706	1.068	1.365	0.611	90.014	7.014	0.439	0.025	0.052	0.009	0.010	0.004	0.001
09/19/2025	1056.917	1.168	1.291	0.614	89.509	7.409	0.504	0.030	0.062	0.010	0.011	0.005	0.001
09/18/2025	1055.689	1.192	1.322	0.614	89.485	7.416	0.483	0.026	0.053	0.009	0.009	0.004	0.001
09/17/2025	1048.919	1.058	1.432	0.609	90.381	6.573	0.459	0.025	0.050	0.008	0.009	0.004	0.001
09/16/2025	1052.681	1.175	1.283	0.612	89.997	6.969	0.471	0.026	0.055	0.009	0.010	0.004	0.001
09/15/2025	1070.172	1.587	0.846	0.625	87.841	9.084	0.539	0.026	0.054	0.008	0.009	0.004	0.001
09/14/2025	1062.034	1.326	1.139	0.619	88.983	7.814	0.593	0.034	0.074	0.013	0.015	0.007	0.002
09/13/2025	1066.509	1.274	1.218	0.622	88.914	7.477	0.824	0.064	0.149	0.028	0.032	0.014	0.006
09/12/2025	1056.526	1.103	1.402	0.614	89.906	6.665	0.693	0.051	0.117	0.022	0.025	0.011	0.005
09/11/2025	1050.744	0.989	1.579	0.611	90.431	6.141	0.644	0.047	0.109	0.020	0.023	0.011	0.004
09/10/2025	1059.657	1.142	1.406	0.617	89.533	6.911	0.742	0.058	0.134	0.025	0.029	0.013	0.006
09/09/2025	1048.760	0.936	1.641	0.609	90.570	6.072	0.577	0.045	0.104	0.019	0.022	0.010	0.003
09/08/2025	1048.701	0.859	1.649	0.608	90.613	6.176	0.535	0.037	0.084	0.016	0.018	0.009	0.003
09/07/2025	1045.531	0.874	1.596	0.606	90.978	5.903	0.537	0.028	0.059	0.009	0.010	0.004	0.001
09/06/2025	1048.708	0.907	1.484	0.607	90.720	6.257	0.526	0.027	0.056	0.008	0.009	0.004	0.001
09/05/2025	1047.656	0.934	1.470	0.607	90.666	6.416	0.444	0.020	0.039	0.005	0.005	0.002	0.000
09/04/2025	1053.644	1.027	1.317	0.610	89.982	7.187	0.428	0.017	0.032	0.004	0.004	0.001	0.000
09/03/2025	1051.494	0.995	1.371	0.609	90.202	6.951	0.424	0.017	0.032	0.004	0.004	0.001	0.000
09/02/2025	1050.966	0.978	1.374	0.608	90.295	6.884	0.413	0.017	0.031	0.004	0.004	0.001	0.000
09/01/2025	1054.463	1.051	1.363	0.612	89.736	7.340	0.450	0.018	0.033	0.004	0.004	0.001	0.000
08/31/2025	1041.796	0.823	1.815	0.605	90.838	6.051	0.408	0.018	0.035	0.005	0.005	0.002	0.000
08/30/2025	1035.273	0.740	2.001	0.601	91.381	5.460	0.361	0.016	0.031	0.004	0.004	0.001	0.000
08/29/2025	1042.649	0.899	1.538	0.604	91.140	5.985	0.385	0.015	0.029	0.004	0.003	0.001	0.000
08/28/2025	1046.065	0.941	1.494	0.606	90.764	6.329	0.403	0.018	0.034	0.005	0.006	0.003	0.001
08/27/2025	1036.750	0.735	1.607	0.598	92.026	5.286	0.307	0.011	0.021	0.003	0.003	0.001	0.000
08/26/2025	1049.802	1.013	1.289	0.607	90.544	6.688	0.420	0.014	0.026	0.003	0.003	0.001	0.000
08/25/2025	1071.582	1.446	0.835	0.623	88.009	9.025	0.612	0.022	0.040	0.005	0.005	0.002	0.000
08/24/2025	1068.720	1.354	0.874	0.621	88.524	8.553	0.613	0.024	0.044	0.006	0.006	0.002	0.000
08/23/2025	1053.206	1.029	1.216	0.609	90.387	6.804	0.478	0.023	0.045	0.007	0.007	0.003	0.001
08/22/2025	1055.608	1.072	1.222	0.611	89.959	7.175	0.493	0.022	0.041	0.006	0.006	0.003	0.001
08/21/2025	1047.860	0.889	1.327	0.605	90.962	6.403	0.368	0.015	0.027	0.003	0.003	0.001	0.000
08/20/2025	1037.399	0.689	1.598	0.598	92.082	5.274	0.313	0.013	0.023	0.003	0.003	0.001	0.000
08/19/2025	1039.772	0.777	1.467	0.599	91.907	5.476	0.323	0.014	0.025	0.004	0.004	0.002	0.001
08/18/2025	1061.614	1.304	0.890	0.615	89.333	7.954	0.460	0.018	0.032	0.004	0.004	0.001	0.000
08/17/2025	1054.609	1.118	1.235	0.612	89.916	7.197	0.453	0.022	0.042	0.007	0.007	0.003	0.001
08/16/2025	1045.374	0.902	1.446	0.604	91.008	6.203	0.384	0.016	0.031	0.004	0.004	0.002	0.000
08/15/2025	1056.331	1.198	1.165	0.613	89.568	7.598	0.419	0.016	0.028	0.004	0.003	0.001	0.000
08/14/2025	1046.180	0.959	1.410	0.605	90.887	6.283	0.394	0.018	0.034	0.005	0.006	0.002	0.001
08/13/2025	1045.075	0.964	1.387	0.605	91.032	6.183	0.376	0.016	0.030	0.004	0.005	0.002	0.000
08/12/2025	1037.217	0.747	1.609	0.598	91.938	5.355	0.310	0.012	0.022	0.003	0.003	0.001	0.000
08/11/2025	1043.814	0.841	1.504	0.603	91.271	5.909	0.403	0.019	0.038	0.006	0.006	0.003	0.001
08/10/2025	1054.038	1.035	1.154	0.609	90.383	6.869	0.486	0.021	0.039	0.005	0.005	0.002	0.000
08/09/2025	1051.061	0.987	1.282	0.608	90.536	6.675	0.452	0.019	0.036	0.005	0.005	0.002	0.000
08/08/2025	1049.193	1.013	1.231	0.606	90.913	6.293	0.455	0.024	0.050	0.008	0.009	0.004	0.001
08/07/2025	1046.419	1.042	1.326	0.606	90.933	6.189	0.424	0.022	0.044	0.007	0.008	0.003	0.001
08/06/2025	1039.881	0.937	1.412	0.601	91.622	5.669	0.319	0.013	0.023	0.003	0.003	0.001	0.000
08/05/2025	1041.218	0.895	1.392	0.601	91.611	5.727	0.329	0.014	0.025	0.003	0.003	0.001	0.000
08/04/2025	1060.483	1.339	0.759	0.614	89.661	7.751	0.435	0.017	0.030	0.003	0.003	0.001	0.000
08/03/2025	1057.540	1.237	0.928	0.612	89.870	7.490	0.423	0.016	0.027	0.003	0.003	0.001	0.000
08/02/2025	1059.531	1.343	0.796	0.614	89.701	7.658	0.448	0.017	0.029	0.003	0.003	0.001	0.000
08/01/2025	1061.403	1.349	0.682	0.614	89.757	7.681	0.462	0.020	0.037	0.005	0.005	0.002	0.000
07/31/2025	1054.390	1.082	0.887	0.607	90.882	6.599	0.451	0.025	0.051	0.008	0.009	0.004	0.001
07/30/2025	1052.855	1.090	0.880	0.606	91.000	6.517	0.441	0.020	0.038	0.005	0.006	0.002	0.000
07/29/2025	1051.446	1.150	0.819	0.606	91.090	6.495	0.393	0.016	0.028	0.003	0.003	0.001	0.000
07/28/2025	1057.019	1.270	0.578	0.609	90.691	6.970	0.438	0.018	0.029	0.003	0.003	0.000	0.000
07/27/2025	1060.123	1.285	0.699	0.612	90.021	7.475	0.452	0.020	0.036	0.005	0.005	0.002	0.000
07/26/2025	1058.457	1.285	0.866	0.613	89.833	7.510	0.446	0.019	0.033	0.004	0.004	0.001	0.000
07/25/2025	1053.637	1.123	1.164	0.610	90.250	6.889	0.481	0.025	0.049	0.007	0.008	0.003	0.001
07/24/2025	1064.343	1.384	0.738	0.617	89.208	8.081	0.528	0.020	0.033	0.004	0.003	0.001	0.000
07/23/2025	1058.345	1.243	0.816	0.611	90.078	7.348	0.446	0.020	0.037	0.005	0.005	0.002	0.000
07/22/2025	1054.433	1.165	0.909	0.609	90.497	6.946	0.426	0.018	0.031	0.004	0.003	0.001	0.000
07/21/2025	1057.029	1.264	0.859	0.611	90.045	7.357	0.419	0.018	0.031	0.004	0.003	0.001	0.000
07/20/2025	1050.648	1.063	1.132	0.607	90.674	6.690	0.383	0.018	0.031	0.004	0.004	0.001	0.000
07/19/2025	1053.641	1.105	1.050	0.609	90.405	6.980	0.395	0.019	0.034	0.005	0.005	0.002	0.000
07/18/2025	1059.286	1.244	1.036	0.614	89.499	7.657	0.486	0.023	0.042	0.005	0.005	0.002	0.000
07/17/2025	1066.179	1.370	0.758	0.618	88.897	8.439	0.481	0.018	0.030	0.003	0.003	0.001	0.000