Thank you, and welcome to our conference call covering our 2020 earnings results and 2021 guidance. This call is being broadcast live to the public over the Internet and slides will accompany our remarks. If you would like to do the slides, please visit our website at www.mdu.com and go to the Events and Presentations page under the Investors tab. Our earnings news release is also available on our website. During the course of this presentation, we will make certain forward-looking statements within the meaning of Section 21E of the Securities Exchange Act of 1934. Although the company believes that its expectations and beliefs are based on reasonable assumptions, actual results may differ materially. For a discussion of factors that may cause actual results to differ, please refer to Item 1A Risk Factors in our most recent Form 10-K and 10-Q. We will also reference EBITDA throughout this conference call, which is considered a non-GAAP financial measure. For reconciliation of EBITDA to net income please refer to the earnings released filed yesterday. For our call today, I will discuss the key financial highlights and then turn the presentation over to Dave Goodin, President and CEO of MDU Resources Group. After Dave's remarks, we will open the line for questions. In addition to Dave and myself, members of our management team who are available to answer questions today are Dave Barney, President and CEO of Knight River Corporation; Jeff Thiede, President and CEO of MDU Construction Services Group; Nicole Kivisto, President and CEO of Cascade Natural Gas, Great Plains Natural Gas, Innermountain Gas and Montana-Dakota Utilities; Trevor Hastings, President and CEO of WBI Energy; and Stephanie Barth, Vice President, Chief Accounting Officer and Controller of MDU Resources. Yesterday after market closed, we announced our 2020 earnings of $390.2 million or $1.95 per share, which is the second best earning results ever in our 97-year history. This compares to 2019 earnings of $335.5 million or $1.69 per share. Earnings in the fourth quarter were $112.3 million or $0.56 per share, compared to $95.1 million or $0.47 per share in 2019. That is an increase of 18%. However, our Construction Materials and Contracting business earned a record $147.3 million in 2020, up 22% from 2019 earnings. This increase was driven by higher gross margins as a result of higher realized materials pricing and margins, specifically margins for our asphalt and asphalt-related products which benefited from lower energy related costs. In addition, strong ready-mixed concrete pricing in most markets and higher construction margins had a positive impact on earnings, partially offset by higher selling, general, administrative expense. EBITDA of this business increased 18% to $304.9 million for 2020. While the acquisitions we previously closed on have contributed to the earnings and EBITDA growth, not much of the – excuse me, much of this increase was generated by organic growth and existing operations. Turning to the other half of our construction platform, MDU Construction Services Group set a new revenue and earnings record for the third consecutive year. Earnings increased 18% from 2019 earnings of $93 million to $109.7 million in 2020. And revenues increased 13% to $2.1 billion for the year. EBITDA increased 19% to a record $173.1 million. The earnings increase was a result of higher inside specialty contracting margins, driven by strong demand in the high tech, commercial and hospitality industries, as well as higher outside specialty contracting margins from increased workloads in the utility space. These increases were partially offset by higher selling, general and administrative expense, including an increased reserve for uncollectible accounts and higher payroll. Our regulated energy delivery platform also delivered strong results in 2020, with our combined utility business earning $99.6 million, up from $94.3 million in 2019. Our electric segment reported earnings of $55.6 million compared to $54.8 million in 2019. Driving this increase was $4.4 million lower operation maintenance expense, primarily due to lower generating station expenses, including the absence of a prior-year planned outage at the Coyote Generating Station. Other income increased during the year from an out-of-period adjustment of $1.9 million after tax related to previously overstated benefit plan expense, which benefited earnings. Improved rate relief was largely offset during the year by a 3.3% decrease in electric retail sales volumes attributed to the COVID-19 pandemic and mild weather. Higher depreciation, depletion and amortization expense, the result of increased plant and equipment balances and higher interest expense were a partial offset to this earnings increase. The natural gas segment reported earnings of $44 million, up from $39.5 million in the prior year. Retail sales margins increased as a result of approved rate recovery in several states. And out-of period adjustment of $2.7 million after tax to the company's benefit plan expense also contributed to the earnings increase. Retail sales volumes decreased 7.4% during the year, as a result of mild weather and COVID-19 impacts. Weather normalization and decoupling mechanisms largely offset the impact from decreased volumes. Higher depreciation, depletion, amortization expense from plant asset additions, as well as increased income tax expense, partially offset the increase in earnings. The pipeline business reported $37 million for earnings in the year, compared to earnings of $29.6 billion in 2019. Increase in earnings was largely the result of higher transportation and storage revenues from recently completed organic growth projects and strong demand for the company's gas storage services. Higher transportation rates from a previously settled FERC rate case and a divestiture of this business is natural gas gathering assets also had a positive impact on earnings. Operation and maintenance expense decreased year-over-year due to lower non-regulated project costs, partially offset by increased payrolls expenses. The increase in earnings was partially offset by lower non-regulated project revenues as well, as higher depreciation from plant asset additions and higher depreciation rates from the FERC rate case previously mentioned. In addition to the strong earnings performance provided by our businesses this year, our consolidated EBITDA grew 14% to $856.7 million, as we continue to execute on our growth plans, excuse me. As we look forward to 2021, we plan to invest $826 million of capital expenditures back into our business this year. These investments include, line of sight opportunities for each of our business lines, such as investments in the natural gas distribution space, new electric generation and transmission investments, the North Bakken expansion project, and organic expansion of the construction businesses. In strategic acquisitions would be incremental to this investment amount. Our balance sheet is strong, and we expect operating cash flows in the range of $600 million to $650 million to be the primary financing source for our capital plan. In addition, we currently intend to issue modest amounts of debt and equity to fill the remaining needs, including equity issuance of up to $100 million during the 2021 time period through our ATM equity program. I'll now turn the call over Dave for his formal remarks, Dave?