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| Percent of Industrial Natural Gas Deliveries in Montana Represented by the Price (Percent) | ||||||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2001 | 3.0 | 3.1 | 2.8 | 2.6 | 2.3 | 1.9 | 0.9 | 0.8 | 1.0 | 1.2 | 1.9 | 3.0 |
| 2002 | 3.0 | 2.9 | 3.6 | 2.3 | 2.0 | 1.2 | 0.9 | 0.7 | 0.8 | 1.1 | 2.1 | 3.4 |
| 2003 | 2.9 | 2.8 | 3.3 | 2.1 | 1.8 | 1.0 | 1.0 | 0.8 | 0.8 | 0.6 | 1.2 | 1.6 |
| 2004 | 1.8 | 2.4 | 1.9 | 1.0 | 1.5 | 1.4 | 1.1 | 0.7 | 0.8 | 1.1 | 1.8 | 2.4 |
| 2005 | 3.1 | 2.9 | 2.2 | 2.3 | 1.8 | 1.4 | 0.9 | 0.6 | 0.7 | 1.0 | 1.3 | 2.3 |
| 2006 | 1.3 | 1.0 | 1.1 | 0.9 | 0.6 | 0.4 | 0.2 | 0.1 | 0.2 | 0.3 | 0.6 | 1.0 |
| 2007 | 1.0 | 1.2 | 0.9 | 0.9 | 0.5 | 0.4 | 0.3 | 0.3 | 0.4 | 0.5 | 0.7 | 1.0 |
| 2008 | 1.3 | 1.4 | 1.8 | 1.1 | 0.9 | 0.5 | 0.6 | 0.5 | 0.5 | 0.4 | 0.8 | 0.9 |
| 2009 | 2.5 | 1.7 | 1.5 | 1.2 | 0.8 | 0.5 | 0.3 | 0.3 | 0.4 | 0.6 | 1.0 | 1.8 |
| 2010 | 2.3 | 2.4 | 2.3 | 1.8 | 1.4 | 0.5 | 0.7 | 0.6 | 0.6 | 1.5 | 1.0 | 2.0 |
| 2011 | 1.9 | 3.3 | 2.1 | 1.3 | 0.9 | 0.6 | 0.5 | 0.5 | 0.4 | 0.5 | 1.7 | 1.3 |
| 2012 | 1.5 | 2.0 | 1.2 | 1.2 | 0.5 | 0.4 | 0.3 | 0.4 | 0.7 | 0.8 | 1.4 | 1.3 |
| 2013 | 1.5 | 1.6 | 1.4 | 1.3 | 0.7 | 0.7 | 0.6 | 0.9 | 0.7 | 0.6 | 1.4 | 2.3 |
| 2014 | 2.4 | 3.6 | 1.8 | 1.2 | 0.6 | 0.9 | 0.4 | 0.5 | 1.0 | 1.5 | 1.4 | 1.0 |
| 2015 | 1.6 | 1.9 | 1.5 | 1.4 | 1.0 | 1.9 | 1.1 | 1.0 | 0.8 | 1.5 | 1.6 | 1.5 |
| 2016 | 2.1 | 2.1 | 1.9 | 1.7 | 1.4 | 0.8 | 1.1 | 0.7 | 0.9 | 1.7 | 1.5 | 2.5 |
| 2017 | 2.8 | 2.8 | 1.7 | 2.0 | 1.5 | 1.0 | 0.7 | 0.9 | 0.8 | 0.9 | 1.4 | 1.2 |
| 2018 | 2.1 | 2.4 | 2.4 | 1.9 | 1.1 | 0.7 | 0.7 | 0.8 | 0.7 | 1.1 | 1.3 | 2.0 |
| 2019 | 2.0 | 2.6 | 3.3 | 1.6 | 1.3 | 1.0 | 0.8 | 0.9 | 0.8 | 1.3 | 1.5 | 1.9 |
| 2020 | 1.8 | 2.0 | 2.3 | 1.6 | 0.9 | 0.7 | 0.4 | 0.4 | 0.6 | 0.6 | 1.7 | 1.8 |
| 2021 | 1.7 | 2.4 | 2.2 | 1.7 | 1.2 | 0.9 | 0.6 | 0.7 | 0.6 | 0.8 | 1.0 | 1.5 |
| 2022 | 2.6 | 2.1 | 2.1 | 2.0 | 1.7 | 1.0 | 0.8 | 1.0 | 0.7 | 1.0 | 1.6 | 1.8 |
| 2023 | 2.3 | 2.1 | 2.7 | 2.4 | 1.4 | 0.9 | 0.6 | 1.1 | 0.8 | 0.9 | 1.7 | 1.8 |
| 2024 | 1.9 | 1.9 | 1.8 | 1.8 | 1.2 | 0.8 | 0.7 | 0.8 | 0.8 | 1.0 | 1.5 | 2.0 |
| 2025 | 2.1 | 3.0 | 2.3 | 1.7 | 1.3 | 0.9 | 1.0 | |||||
| - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. |
| Release Date: 9/30/2025 |
| Next Release Date: 10/31/2025 |