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Gas Quality / Gas Quality By Date

Date Requested: Feb 28 2026 7:56 AM

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


02/28/2026	1041.243	0.714	1.483	0.599	92.039	5.241	0.428	0.025	0.046	0.008	0.008	0.004	0.003	0.000
02/27/2026	1041.243	0.714	1.483	0.599	92.039	5.241	0.428	0.025	0.046	0.008	0.008	0.004	0.003	0.000
02/26/2026	1033.209	0.551	1.841	0.595	92.546	4.608	0.374	0.021	0.040	0.006	0.007	0.004	0.002	0.000
02/25/2026	1028.693	0.494	1.918	0.592	92.994	4.217	0.312	0.016	0.031	0.005	0.005	0.003	0.002	0.000
02/24/2026	1029.690	0.507	1.913	0.593	92.860	4.332	0.320	0.017	0.032	0.005	0.005	0.003	0.003	0.000
02/23/2026	1028.445	0.487	1.994	0.593	92.880	4.247	0.323	0.017	0.032	0.005	0.005	0.003	0.002	0.000
02/22/2026	1036.016	0.635	1.838	0.598	92.005	5.042	0.405	0.020	0.037	0.006	0.006	0.003	0.002	0.000
02/21/2026	1029.842	0.545	2.019	0.595	92.505	4.529	0.336	0.017	0.032	0.005	0.005	0.003	0.002	0.000
02/20/2026	1028.534	0.497	2.080	0.594	92.656	4.359	0.340	0.018	0.034	0.006	0.006	0.003	0.002	0.000
02/19/2026	1026.523	0.449	2.138	0.592	92.891	4.125	0.323	0.019	0.035	0.006	0.006	0.004	0.002	0.000
02/18/2026	1031.812	0.549	1.872	0.595	92.611	4.548	0.345	0.020	0.037	0.006	0.006	0.003	0.002	0.000
02/17/2026	1034.347	0.569	1.738	0.595	92.496	4.810	0.324	0.017	0.031	0.005	0.005	0.002	0.001	0.000
02/16/2026	1034.249	0.612	1.843	0.597	92.265	4.816	0.384	0.022	0.039	0.006	0.007	0.004	0.002	0.000
02/15/2026	1034.629	0.617	1.829	0.597	92.219	4.879	0.383	0.020	0.037	0.006	0.006	0.003	0.002	0.000
02/14/2026	1032.886	0.554	1.853	0.595	92.502	4.666	0.355	0.019	0.035	0.005	0.005	0.003	0.002	0.000
02/13/2026	1027.453	0.447	2.066	0.592	92.908	4.206	0.311	0.016	0.030	0.005	0.005	0.003	0.002	0.000
02/12/2026	1033.652	0.565	1.888	0.596	92.314	4.782	0.384	0.019	0.034	0.005	0.005	0.002	0.001	0.000
02/11/2026	1043.383	0.693	1.649	0.602	91.515	5.510	0.540	0.027	0.048	0.006	0.006	0.003	0.002	0.000
02/10/2026	1045.647	0.726	1.676	0.604	91.152	5.750	0.595	0.030	0.051	0.007	0.006	0.003	0.002	0.000
02/09/2026	1036.037	0.588	1.906	0.598	91.985	5.009	0.432	0.022	0.041	0.005	0.005	0.003	0.002	0.000
02/08/2026	1036.800	0.638	1.821	0.599	91.902	5.179	0.391	0.019	0.035	0.005	0.005	0.002	0.001	0.000
02/07/2026	1050.627	0.861	1.477	0.607	90.552	6.505	0.517	0.025	0.043	0.007	0.007	0.003	0.002	0.000
02/06/2026	1041.748	0.724	1.665	0.602	91.456	5.677	0.404	0.019	0.034	0.006	0.006	0.003	0.002	0.000
02/05/2026	1033.417	0.558	1.998	0.597	92.096	4.935	0.342	0.017	0.032	0.006	0.006	0.004	0.003	0.000
02/04/2026	1036.114	0.589	1.956	0.599	91.794	5.223	0.366	0.017	0.032	0.005	0.006	0.004	0.003	0.000
02/03/2026	1038.838	0.639	1.885	0.601	91.519	5.481	0.403	0.019	0.034	0.006	0.006	0.003	0.003	0.000
02/02/2026	1045.049	0.741	1.768	0.605	90.868	6.031	0.509	0.025	0.040	0.006	0.006	0.003	0.002	0.000
02/01/2026	1043.202	0.653	1.865	0.603	91.082	5.830	0.480	0.025	0.041	0.007	0.006	0.004	0.003	0.000
01/31/2026	1047.717	0.635	1.898	0.606	90.656	6.082	0.610	0.035	0.053	0.009	0.008	0.005	0.004	0.000
01/30/2026	1041.856	0.484	2.137	0.603	91.102	5.661	0.499	0.033	0.052	0.010	0.009	0.006	0.004	0.000
01/29/2026	1039.374	0.480	2.044	0.600	91.575	5.347	0.450	0.027	0.046	0.008	0.009	0.005	0.004	0.000
01/28/2026	1027.155	0.379	2.209	0.592	92.817	4.213	0.308	0.019	0.031	0.006	0.006	0.004	0.004	0.000
01/27/2026	1024.539	0.364	2.075	0.589	93.409	3.847	0.244	0.013	0.024	0.005	0.006	0.004	0.003	0.000
01/26/2026	1033.571	0.556	1.956	0.597	92.172	4.900	0.350	0.016	0.030	0.005	0.005	0.003	0.003	0.000
01/25/2026	1034.930	0.579	1.961	0.598	91.949	5.084	0.356	0.017	0.032	0.005	0.006	0.004	0.003	0.000
01/24/2026	1030.462	0.538	2.058	0.596	92.323	4.712	0.311	0.014	0.026	0.004	0.005	0.003	0.003	0.000
01/23/2026	1028.994	0.459	2.002	0.593	92.756	4.466	0.270	0.011	0.022	0.004	0.004	0.002	0.002	0.000
01/22/2026	1027.439	0.443	1.987	0.591	93.022	4.243	0.257	0.011	0.021	0.004	0.004	0.002	0.002	0.001
01/21/2026	1029.132	0.462	2.070	0.594	92.640	4.454	0.320	0.014	0.025	0.004	0.004	0.002	0.002	0.000
01/20/2026	1029.247	0.489	2.029	0.594	92.638	4.486	0.306	0.014	0.025	0.004	0.004	0.002	0.002	0.000
01/19/2026	1027.536	0.463	2.021	0.592	92.886	4.310	0.274	0.012	0.022	0.003	0.003	0.002	0.001	0.000
01/18/2026	1027.966	0.470	2.060	0.593	92.745	4.381	0.298	0.013	0.024	0.003	0.003	0.001	0.001	0.000
01/17/2026	1026.713	0.493	1.987	0.592	92.989	4.218	0.271	0.012	0.021	0.003	0.003	0.001	0.001	0.000
01/16/2026	1024.815	0.460	2.066	0.591	93.119	4.052	0.260	0.012	0.021	0.003	0.003	0.001	0.001	0.000
01/15/2026	1030.234	0.561	1.802	0.593	92.807	4.513	0.274	0.012	0.022	0.004	0.003	0.001	0.001	0.000
01/14/2026	1038.301	0.724	1.484	0.597	92.221	5.172	0.338	0.016	0.031	0.005	0.005	0.002	0.001	0.000
01/13/2026	1036.811	0.696	1.514	0.596	92.369	5.057	0.308	0.015	0.029	0.005	0.005	0.002	0.001	0.000
01/12/2026	1028.182	0.517	1.870	0.592	93.013	4.294	0.258	0.013	0.023	0.004	0.004	0.002	0.001	0.000
01/11/2026	1030.814	0.524	1.825	0.593	92.814	4.485	0.297	0.015	0.027	0.005	0.005	0.002	0.001	0.000
01/10/2026	1036.738	0.645	1.653	0.597	92.236	5.053	0.348	0.017	0.032	0.006	0.006	0.003	0.002	0.000
01/09/2026	1033.976	0.606	1.678	0.595	92.559	4.794	0.309	0.015	0.027	0.005	0.004	0.002	0.001	0.000
01/08/2026	1038.025	0.672	1.618	0.598	92.088	5.202	0.359	0.017	0.031	0.005	0.005	0.002	0.001	0.000
01/07/2026	1035.829	0.639	1.717	0.597	92.233	4.987	0.353	0.019	0.035	0.006	0.006	0.003	0.001	0.000
01/06/2026	1035.158	0.624	1.693	0.596	92.378	4.908	0.334	0.017	0.031	0.005	0.005	0.003	0.001	0.000
01/05/2026	1036.580	0.653	1.668	0.597	92.230	5.016	0.364	0.018	0.035	0.006	0.006	0.003	0.002	0.000
01/04/2026	1031.735	0.607	1.900	0.596	92.357	4.753	0.328	0.015	0.028	0.004	0.004	0.002	0.001	0.000
01/03/2026	1028.824	0.567	2.106	0.595	92.328	4.629	0.318	0.014	0.026	0.004	0.004	0.002	0.001	0.000
01/02/2026	1035.761	0.615	1.936	0.599	91.779	5.244	0.365	0.017	0.031	0.005	0.005	0.002	0.001	0.000
01/01/2026	1038.947	0.679	1.811	0.601	91.549	5.503	0.389	0.019	0.035	0.005	0.005	0.002	0.001	0.000
12/31/2025	1040.432	0.667	1.898	0.602	91.265	5.644	0.446	0.022	0.040	0.006	0.006	0.003	0.002	0.000
12/30/2025	1031.516	0.523	2.094	0.596	92.159	4.814	0.351	0.016	0.030	0.004	0.004	0.002	0.001	0.000
12/29/2025	1035.414	0.582	2.019	0.599	91.728	5.225	0.382	0.018	0.033	0.005	0.005	0.002	0.001	0.001
12/28/2025	1042.333	0.730	1.844	0.604	90.986	5.913	0.455	0.021	0.038	0.005	0.005	0.002	0.001	0.000
12/27/2025	1037.368	0.658	1.923	0.600	91.534	5.424	0.396	0.018	0.033	0.005	0.005	0.002	0.001	0.000
12/26/2025	1039.168	0.691	1.782	0.601	91.579	5.478	0.397	0.020	0.037	0.006	0.006	0.003	0.001	0.000
12/25/2025	1039.218	0.720	1.841	0.602	91.406	5.521	0.438	0.021	0.038	0.005	0.006	0.003	0.001	0.000
12/24/2025	1039.338	0.694	1.919	0.602	91.269	5.613	0.430	0.020	0.038	0.006	0.006	0.003	0.002	0.000
12/23/2025	1046.456	0.821	1.778	0.607	90.490	6.305	0.516	0.025	0.046	0.007	0.007	0.003	0.002	0.000
12/22/2025	1044.038	0.794	1.876	0.606	90.538	6.270	0.448	0.021	0.039	0.005	0.005	0.002	0.001	0.000
12/21/2025	1039.203	0.693	1.962	0.603	91.197	5.637	0.434	0.021	0.039	0.006	0.006	0.003	0.002	0.000
12/20/2025	1033.753	0.590	2.092	0.599	91.748	5.128	0.381	0.017	0.031	0.005	0.004	0.002	0.001	0.000
12/19/2025	1039.182	0.696	1.849	0.601	91.403	5.579	0.406	0.019	0.035	0.005	0.005	0.002	0.001	0.000
12/18/2025	1042.570	0.773	1.769	0.604	91.003	5.948	0.437	0.020	0.036	0.005	0.005	0.002	0.001	0.000
12/17/2025	1054.310	0.938	1.602	0.612	89.652	7.159	0.554	0.026	0.049	0.007	0.007	0.003	0.002	0.000
12/16/2025	1040.367	0.682	2.068	0.604	90.884	5.809	0.474	0.022	0.042	0.006	0.006	0.003	0.002	0.000
12/15/2025	1029.324	0.494	2.268	0.596	92.121	4.704	0.349	0.016	0.031	0.005	0.005	0.002	0.002	0.000
12/14/2025	1032.074	0.543	2.154	0.598	91.915	4.962	0.364	0.017	0.032	0.005	0.005	0.002	0.001	0.000
12/13/2025	1029.583	0.513	2.165	0.596	92.264	4.653	0.344	0.016	0.031	0.005	0.005	0.002	0.001	0.000
12/12/2025	1031.710	0.587	2.131	0.598	91.953	4.885	0.372	0.020	0.038	0.006	0.006	0.002	0.001	0.000
12/11/2025	1041.104	0.758	1.917	0.604	90.969	5.786	0.483	0.024	0.045	0.007	0.007	0.003	0.001	0.000
12/10/2025	1041.051	0.752	1.774	0.603	91.312	5.632	0.432	0.024	0.048	0.008	0.009	0.004	0.003	0.000
12/09/2025	1034.962	0.627	2.040	0.600	91.760	5.025	0.467	0.023	0.042	0.006	0.006	0.002	0.001	0.000
12/08/2025	1029.664	0.560	2.120	0.596	92.296	4.599	0.347	0.019	0.038	0.007	0.007	0.003	0.002	0.000
12/07/2025	1028.455	0.558	2.119	0.595	92.440	4.481	0.327	0.019	0.036	0.006	0.007	0.003	0.002	0.000
12/06/2025	1021.438	0.423	2.312	0.591	93.123	3.816	0.265	0.015	0.030	0.005	0.005	0.003	0.002	0.000
12/05/2025	1022.687	0.464	2.281	0.592	92.971	3.935	0.282	0.017	0.034	0.006	0.006	0.003	0.002	0.000
12/04/2025	1035.492	0.683	2.015	0.601	91.592	5.201	0.425	0.022	0.042	0.006	0.007	0.003	0.002	0.000
12/03/2025	1015.470	0.341	2.459	0.587	93.722	3.188	0.230	0.014	0.027	0.005	0.005	0.003	0.002	0.000
12/02/2025	1011.352	0.263	2.591	0.585	94.070	2.837	0.189	0.011	0.023	0.004	0.005	0.003	0.002	0.000
12/01/2025	1009.585	0.296	2.638	0.585	94.086	2.747	0.188	0.011	0.022	0.004	0.004	0.002	0.001	0.000
11/30/2025	1013.450	0.364	2.475	0.586	93.853	3.035	0.219	0.013	0.027	0.005	0.005	0.002	0.001	0.000
11/29/2025	1018.106	0.431	2.326	0.589	93.475	3.465	0.245	0.014	0.029	0.005	0.005	0.002	0.001	0.000
11/28/2025	1032.175	0.666	1.978	0.598	92.097	4.793	0.384	0.021	0.042	0.007	0.007	0.003	0.002	0.000
11/27/2025	1032.298	0.630	1.928	0.597	92.290	4.696	0.366	0.022	0.045	0.008	0.009	0.004	0.002	0.000