Thank you, Mark, and good morning to everyone. I want to open my remarks today by expressing gratitude to the entire BWXT team for successful and more importantly safe 2019. We had a record year for safe operations and the hard work and dedication to the BWXT mission and core values was evident in 2019 results. The attention to detail and enduring commitment delivered the highest quality products and solutions continue to enable success for the company as we move into the decade. Yesterday, we reported strong fourth quarter results with non-GAAP earnings of $0.71 per share on revenue growth of 5%. These results kept off an exceptionally year for BWXT culminating in annual revenue growth of 5% to a record setting $1.9 billion with earnings up 10% to $2.62 per share as we outperform outperformed against our revised earnings guidance for the year. Fourth quarter performance was anchored by strong execution and the Navy franchise as the segment exhibited continued growth and delivered solid margins. As we anticipated with the multi-year agreement we discussed on the last call NOG received a $1 billion contract for nuclear propulsion equipment on the next Ford -Class carrier resulting in approximately $4 billion in cumulative contracts for the year. The commercial nuclear power business continues to be strong through the CANDU refurbishment cycle and delivered strong operating margins as we closed out 2019. The business was also edified by the acquisition of Laker Energy products in early January. Although small, this acquisition will provide BWXT with complimentary products. A larger global customer base and incremental opportunities to expand share and this favorable nuclear power market moving forward. Additionally, the Services segment delivered solid results in the fourth quarter lighter than we would have liked but still good results given the pace of awards during 2019. Unfortunately, we were not awarded the Hanford Central Plateau Cleanup Contract which is under protest by another company. However, last week the deal we published a notice of intent to extend our Portsmouth D&E contract and we anticipate the pace of awards to pick back up as we look to future opportunities in the robust DOE pipeline for which we can provide unique nuclear solutions. Let me give you an update on the landscape of the business and the progress we are making on strategic priorities before turning the call over to David to discuss detailed financial results. The Nuclear Operations Group ended the year with record backlog of $4.5 billion driven by the successful awards of the aforementioned contracts. We are in the midst of kicking off our new, our next multi-year pricing agreement which we anticipate to encompass two years and we expect to complete those negotiations around the end of 2020. Couple of weeks ago the President released the government fiscal year 2021 budget request and the Navy is revisiting its 4-structure assessment which is due to be published in the near future. Overall, we feel that the nuclear propulsion programs are generally insulated from annual budgetary pressures and remain among the Navy's top acquisition priorities. However, the President's request included a late change in which the Navy would procure only one Virginia-class submarine in 2021. While we don't anticipate an immediate impact from this scenario, we are working with our customer to understand any longer-term consequence of this possible acquisition change. Over the long-term planning horizon, we continue to contemplate a procurement cadence of two Virginia-classes nuclear propulsion ship sets per year. The planned buildup of the Columbia class submarine and Ford-Class carrier orders on a five-year cadence. So the Navy franchise continues to remain on an overall positive trajectory. Outside of nuclear propulsion we would continue to look for ways to supplement the Nuclear Operations Group with other opportunities. Earlier this month, we announced a small contract from the NNSA to decommission and refurbish portions of our Lynchburg facility for future production of uranium molybdenum or UMoly high SA low enriched uranium. In the future this will be a critical capability to lower proliferation risk and convert US research reactors from high enriched uranium fuel. We also continue to move forward on the restart of our TRISO fuel line, efforts are progressing ahead of schedule and our technicians are now producing uranium solutions and forming TRISO fuel kernels. We anticipate future contracts for consistent production runs supporting BWXT's efforts to supply this unique fuel for emerging customer defense demands and defense and space applications. Lastly, progress on missile tubes continues albeit slower and more tedious than originally perceived. About 80% of the repair welds are now complete or in process. The balance of missile tube work is scheduled to roll off in 2021 with our 2018 reserves remaining adequate to cover these costs. In the Commercial Nuclear Power Business, we're seeing signs of stabilizing revenue as we enter the middle of the refurbishment cycle, particularly as it relates to large component manufacturing, which runs ahead of the refurbishment outages. Our revenues 2019 were split about 50/50 between refurbishment activity and normal recurring activity. The acquisition of Laker Energy products will give us some near-term inorganic growth along with a broader product portfolio to seek incremental opportunities in the refurbishment cycle. In Nuclear Services, our pipeline of opportunities over the next several years remains strong. As you know, the two Hanford contracts that were aborted in 2019 are under protest further delaying anticipated award of the Hanford tank closure contract. We believe this will be resolved in the coming quarter and anticipate a successful award of the tanks contract in late spring with work starting about 90 days thereafter. Beyond Hanford the services team continues to evaluate other opportunities which we have outlined in our investor briefing. Near-term opportunities include the rebid of the Savannah River liquid waste contract that is expected to be awarded around the end of 2020. Idaho and the Savannah River M&O contract awards are expected to be 2021 events and we have line of sight two opportunities beyond that. In the Medical Radioisotopes Business, we saw some incremental growth with the introduction of tube products late last year and we expect this trend to continue into 2020. We are also making progress on moly-9, moly-99 commercialization efforts while also addressing some scheduled challenges. As noted in the press released this morning, we demonstrated the labeling of cold-kits utilizing BWXT's proprietary moly-99 production process and the business' proprietary technetium 99-M generator. We successfully labeled all the cold-kits that we tested including nine of the most widely used kits in the North American market, representing in excess of 90% of procedures used today. These results were demonstrated with third-party participants showing that the BWXT Technology will work as a drop-in replacement for existing generators on the market today. The multi-faceted commercialization efforts continue to make solid, but slower progress than anticipated. The Moly target manufacturing facility is now complete and all along lead items for radio chemistry and radiopharmaceutical lines are under contract. We also completed a significant milestone with a successful functional acceptance test of the first Moly-99 hot cell which we expect to receive at the Kanata facility next month. However, our progress is also comes from scheduled challenges. The team is working through some schedule delays. We mentioned in the past that we had optionality around to radiation services in order to mitigate against regulatory timelines. In that regard, we announced the second year radiation agreement with the Missouri University Research Reactor this morning. We plan to utilize MURR to augment radiation services as required enabling us to run hot material through the radio chemistry and radio pharmacy facilities for testing validation and development of the new production line. Due to these delays, we are rebased lining program schedule and expect to provide investors with an update as we work through the risks and approaches and detailed plans crystallize. But I do want to emphasize that the success of the technology has been demonstrated and we remain focused on the final steps to industrialize and automates product line. Lastly, we recently had the pleasure of hosting NASA Administrator, Jim Bridenstine and the President's Science Advisor Dr. Kelvin Droegemeier at BWXT facilities in Lynchburg. We provided an update on our naval reactors business, the NASA and Nuclear Thermal Propulsion program. Our research activities and additive manufacturing and our advanced nuclear fuel manufacturing lines. Our guests all commented that they were impressed by the magnitude and importance of the work we do and the exceptional quality of our people. NASA Administrator Bridenstine stated that the path to Mars very likely goes through Lynchburg. This visit exemplifies the importance of advanced nuclear solutions and we believe that BWXT is uniquely positioned to meet the growing demand for nuclear power applications to address some of the most significant challenges in national security and space exploration. As we exit 2019, we believe the company is well positioned for growth heading into the new decade. Our capital investments for organic growth are already bearing fruit in the Navy franchise and we anticipate that 2020 will be a peak for total company CapEx as we expand our capacity and NOG and lay the major groundwork for the Moly-99 product line. Similar to the initial outlook we provided last quarter, we expect 2020 revenue growth of about 8% and earnings of about $2.80 per share driven by continued strength in the Navy business and new wins in nuclear services. And with that, I will turn the call over to David.