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Gas Quality / Gas Quality By Date

Date Requested: Feb 28 2026 7:58 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	1053.012	0.934	0.993	0.605	91.234	6.238	0.484	0.029	0.058	0.010	0.011	0.005	0.005
02/27/2026	1053.012	0.934	0.993	0.605	91.234	6.238	0.484	0.029	0.058	0.010	0.011	0.005	0.005
02/26/2026	1050.197	0.912	0.970	0.603	91.553	6.076	0.405	0.021	0.040	0.007	0.007	0.004	0.004
02/25/2026	1046.939	0.914	1.028	0.601	91.764	5.865	0.356	0.018	0.035	0.006	0.006	0.003	0.003
02/24/2026	1040.787	0.786	1.304	0.598	92.205	5.291	0.345	0.018	0.034	0.006	0.006	0.003	0.003
02/23/2026	1039.293	0.753	1.324	0.597	92.398	5.129	0.332	0.017	0.031	0.005	0.005	0.003	0.003
02/22/2026	1041.576	0.808	1.339	0.599	91.932	5.522	0.342	0.016	0.029	0.004	0.004	0.002	0.002
02/21/2026	1039.548	0.782	1.469	0.599	91.948	5.406	0.337	0.016	0.029	0.004	0.004	0.002	0.002
02/20/2026	1035.747	0.648	1.589	0.596	92.449	4.937	0.322	0.015	0.028	0.004	0.004	0.001	0.001
02/19/2026	1045.161	0.823	1.084	0.599	92.038	5.640	0.355	0.018	0.031	0.004	0.004	0.001	0.001
02/18/2026	1055.503	0.977	0.689	0.604	91.321	6.541	0.399	0.020	0.038	0.005	0.005	0.001	0.001
02/17/2026	1045.130	0.786	1.124	0.599	92.011	5.679	0.344	0.016	0.029	0.004	0.004	0.001	0.001
02/16/2026	1041.822	0.742	1.266	0.598	92.230	5.353	0.349	0.017	0.030	0.005	0.004	0.002	0.002
02/15/2026	1048.844	0.847	0.984	0.601	91.784	5.934	0.380	0.019	0.037	0.005	0.005	0.002	0.002
02/14/2026	1046.987	0.832	1.057	0.600	91.836	5.861	0.355	0.016	0.030	0.004	0.004	0.002	0.002
02/13/2026	1044.579	0.793	1.162	0.599	91.965	5.689	0.341	0.015	0.027	0.003	0.003	0.001	0.001
02/12/2026	1042.864	0.772	1.210	0.598	92.125	5.504	0.340	0.015	0.026	0.003	0.003	0.001	0.001
02/11/2026	1043.444	0.721	1.288	0.599	92.074	5.448	0.408	0.019	0.032	0.004	0.004	0.001	0.001
02/10/2026	1042.241	0.690	1.374	0.598	92.123	5.328	0.421	0.019	0.033	0.004	0.004	0.001	0.001
02/09/2026	1040.196	0.680	1.372	0.597	92.349	5.176	0.368	0.017	0.030	0.004	0.003	0.001	0.001
02/08/2026	1041.770	0.725	1.277	0.597	92.215	5.400	0.334	0.015	0.026	0.004	0.003	0.001	0.001
02/07/2026	1047.676	0.856	1.015	0.601	91.781	5.935	0.361	0.015	0.027	0.003	0.003	0.001	0.001
02/06/2026	1040.275	0.816	1.357	0.599	92.019	5.428	0.327	0.014	0.025	0.004	0.004	0.003	0.003
02/05/2026	1037.339	0.648	1.606	0.597	92.217	5.160	0.308	0.014	0.027	0.005	0.005	0.004	0.004
02/04/2026	1035.371	0.636	1.755	0.597	92.175	5.057	0.311	0.016	0.029	0.005	0.006	0.005	0.005
02/03/2026	1038.758	0.668	1.646	0.599	91.893	5.408	0.331	0.015	0.026	0.004	0.004	0.002	0.002
02/02/2026	1041.385	0.711	1.544	0.600	91.720	5.611	0.359	0.016	0.027	0.004	0.004	0.002	0.002
02/01/2026	1044.388	0.723	1.595	0.602	91.335	5.838	0.415	0.028	0.040	0.008	0.008	0.005	0.005
01/31/2026	1049.750	0.734	1.687	0.607	90.554	6.386	0.520	0.039	0.050	0.010	0.009	0.006	0.006
01/30/2026	1051.099	0.718	1.575	0.606	90.686	6.381	0.512	0.041	0.052	0.012	0.010	0.006	0.006
01/29/2026	1049.613	0.778	1.455	0.605	91.029	6.102	0.503	0.045	0.052	0.013	0.010	0.007	0.007
01/28/2026	1048.316	0.833	1.347	0.604	91.308	5.905	0.467	0.048	0.051	0.014	0.011	0.008	0.008
01/27/2026	1039.838	0.723	1.283	0.596	92.416	5.244	0.287	0.012	0.021	0.004	0.004	0.003	0.003
01/26/2026	1042.058	0.730	1.299	0.598	92.123	5.467	0.327	0.013	0.025	0.004	0.004	0.003	0.003
01/25/2026	1039.162	0.712	1.451	0.597	92.213	5.235	0.326	0.015	0.030	0.005	0.005	0.004	0.004
01/24/2026	1043.307	0.794	1.336	0.600	91.724	5.763	0.333	0.013	0.025	0.004	0.004	0.002	0.002
01/23/2026	1043.819	0.776	1.265	0.599	91.868	5.711	0.324	0.014	0.027	0.004	0.005	0.002	0.002
01/22/2026	1040.679	0.736	1.383	0.598	92.099	5.407	0.318	0.014	0.027	0.004	0.005	0.004	0.004
01/21/2026	1038.638	0.704	1.440	0.597	92.318	5.156	0.319	0.015	0.030	0.005	0.005	0.004	0.004
01/20/2026	1039.116	0.741	1.352	0.597	92.314	5.253	0.291	0.012	0.023	0.004	0.004	0.003	0.003
01/19/2026	1039.029	0.711	1.321	0.596	92.433	5.220	0.272	0.011	0.020	0.003	0.003	0.003	0.003
01/18/2026	1038.870	0.743	1.359	0.597	92.306	5.259	0.288	0.012	0.022	0.003	0.003	0.002	0.002
01/17/2026	1039.325	0.781	1.319	0.597	92.291	5.247	0.313	0.013	0.025	0.004	0.004	0.002	0.002
01/16/2026	1040.932	0.817	1.288	0.599	92.081	5.445	0.314	0.015	0.028	0.004	0.005	0.002	0.002
01/15/2026	1042.714	0.821	1.225	0.599	92.000	5.574	0.325	0.015	0.027	0.005	0.004	0.002	0.002
01/14/2026	1044.141	0.840	1.169	0.600	91.947	5.626	0.351	0.017	0.034	0.005	0.006	0.002	0.002
01/13/2026	1041.309	0.771	1.301	0.598	92.104	5.456	0.314	0.015	0.028	0.004	0.004	0.002	0.002
01/12/2026	1039.125	0.756	1.341	0.597	92.341	5.198	0.301	0.016	0.031	0.005	0.006	0.002	0.002
01/11/2026	1044.815	0.793	1.131	0.599	92.059	5.602	0.347	0.018	0.033	0.006	0.006	0.003	0.003
01/10/2026	1046.648	0.856	1.108	0.601	91.768	5.822	0.371	0.019	0.037	0.006	0.007	0.003	0.003
01/09/2026	1050.681	0.928	0.899	0.602	91.540	6.193	0.378	0.017	0.032	0.005	0.005	0.002	0.002
01/08/2026	1046.546	0.842	1.103	0.601	91.825	5.783	0.376	0.019	0.036	0.006	0.006	0.003	0.003
01/07/2026	1046.207	0.846	1.114	0.601	91.878	5.692	0.381	0.022	0.044	0.008	0.008	0.003	0.003
01/06/2026	1045.545	0.817	1.144	0.600	91.961	5.609	0.379	0.022	0.044	0.008	0.008	0.004	0.004
01/05/2026	1044.944	0.851	1.160	0.600	91.922	5.597	0.381	0.022	0.044	0.008	0.008	0.003	0.003
01/04/2026	1041.265	0.808	1.325	0.599	92.040	5.410	0.346	0.018	0.035	0.006	0.006	0.003	0.003
01/03/2026	1046.387	0.919	1.159	0.602	91.550	5.913	0.382	0.020	0.038	0.007	0.007	0.003	0.003
01/02/2026	1046.068	0.881	1.262	0.603	91.445	5.957	0.377	0.020	0.038	0.007	0.007	0.003	0.003
01/01/2026	1051.196	1.007	1.069	0.606	91.030	6.376	0.414	0.025	0.052	0.009	0.010	0.004	0.004
12/31/2025	1038.818	0.699	1.590	0.598	91.955	5.372	0.323	0.016	0.030	0.005	0.005	0.003	0.003
12/30/2025	1037.372	0.630	1.670	0.597	92.131	5.173	0.328	0.017	0.033	0.006	0.006	0.003	0.003
12/29/2025	1042.830	0.745	1.517	0.601	91.602	5.668	0.386	0.021	0.041	0.007	0.007	0.003	0.003
12/28/2025	1042.038	0.799	1.472	0.601	91.658	5.617	0.377	0.020	0.039	0.007	0.007	0.002	0.002
12/27/2025	1040.397	0.746	1.504	0.599	91.887	5.436	0.356	0.018	0.036	0.006	0.006	0.002	0.002
12/26/2025	1044.927	0.859	1.365	0.603	91.450	5.831	0.407	0.022	0.045	0.008	0.008	0.002	0.002
12/25/2025	1045.039	0.872	1.296	0.602	91.532	5.833	0.387	0.021	0.040	0.007	0.007	0.003	0.003
12/24/2025	1047.312	0.901	1.196	0.603	91.421	6.006	0.389	0.022	0.044	0.008	0.008	0.003	0.003
12/23/2025	1038.087	0.723	1.577	0.598	92.094	5.175	0.351	0.019	0.039	0.007	0.007	0.004	0.004
12/22/2025	1035.585	0.639	1.734	0.597	92.242	4.969	0.332	0.020	0.041	0.008	0.008	0.004	0.004
12/21/2025	1042.500	0.768	1.581	0.602	91.470	5.711	0.378	0.021	0.044	0.008	0.009	0.005	0.005
12/20/2025	1041.290	0.737	1.613	0.601	91.538	5.684	0.362	0.017	0.033	0.006	0.006	0.002	0.002
12/19/2025	1053.301	0.968	1.190	0.608	90.492	6.866	0.405	0.020	0.039	0.007	0.007	0.003	0.003
12/18/2025	1052.681	0.964	1.188	0.607	90.610	6.722	0.441	0.021	0.038	0.006	0.006	0.002	0.002
12/17/2025	1049.656	0.879	1.352	0.606	90.877	6.356	0.442	0.024	0.047	0.008	0.008	0.004	0.004
12/16/2025	1046.339	0.887	1.473	0.605	90.957	6.178	0.421	0.021	0.041	0.007	0.007	0.003	0.003
12/15/2025	1044.890	0.836	1.585	0.605	91.019	6.049	0.419	0.023	0.045	0.008	0.008	0.003	0.003
12/14/2025	1043.867	0.800	1.502	0.602	91.334	5.926	0.365	0.019	0.036	0.006	0.007	0.003	0.003
12/13/2025	1044.376	0.826	1.563	0.604	91.103	6.037	0.393	0.020	0.039	0.006	0.007	0.003	0.003
12/12/2025	1044.974	0.823	1.561	0.604	91.046	6.101	0.385	0.022	0.043	0.007	0.008	0.003	0.003
12/11/2025	1053.195	0.948	1.343	0.609	90.344	6.767	0.490	0.028	0.054	0.009	0.010	0.004	0.004
12/10/2025	1048.111	0.863	1.483	0.606	90.850	6.246	0.451	0.026	0.053	0.009	0.010	0.005	0.005
12/09/2025	1048.071	0.862	1.479	0.606	90.844	6.258	0.457	0.026	0.051	0.008	0.009	0.003	0.003
12/08/2025	1050.439	0.890	1.435	0.607	90.574	6.560	0.433	0.026	0.055	0.010	0.011	0.004	0.004
12/07/2025	1053.519	1.009	1.270	0.609	90.219	7.012	0.394	0.023	0.048	0.009	0.010	0.004	0.004
12/06/2025	1049.694	0.978	1.251	0.606	90.832	6.426	0.425	0.023	0.046	0.007	0.007	0.002	0.002
12/05/2025	1049.133	0.960	1.413	0.607	90.599	6.502	0.429	0.024	0.049	0.008	0.008	0.004	0.004
12/04/2025	1061.578	1.293	0.879	0.615	89.412	7.886	0.460	0.020	0.037	0.005	0.005	0.002	0.002
12/03/2025	1040.181	0.832	1.447	0.600	91.789	5.560	0.311	0.015	0.029	0.005	0.005	0.003	0.003
12/02/2025	1035.189	0.770	1.575	0.597	92.274	5.019	0.302	0.015	0.030	0.005	0.005	0.003	0.003
12/01/2025	1039.255	0.848	1.475	0.600	91.906	5.328	0.360	0.021	0.043	0.007	0.008	0.003	0.003
11/30/2025	1041.402	0.919	1.401	0.602	91.707	5.479	0.392	0.025	0.052	0.009	0.010	0.003	0.003
11/29/2025	1046.091	0.982	1.235	0.604	91.360	5.905	0.416	0.025	0.052	0.009	0.010	0.004	0.004
11/28/2025	1053.529	1.116	1.027	0.609	90.614	6.686	0.443	0.027	0.058	0.010	0.011	0.004	0.004
11/27/2025	1051.814	1.012	1.111	0.607	90.874	6.455	0.435	0.027	0.057	0.010	0.010	0.004	0.004