Thank you, Phil and welcome everyone. Earlier this morning, we released 2018 first quarter earnings for both Alliance Resource Partners, or ARLP and Alliance Holdings GP, or AHGP and we will now discuss these results as well as our outlook for the balance of the year. Following our prepared remarks, we will open the call to your questions. Before beginning, a reminder that some of our remarks today may include forward-looking statements that are subject to a variety of risks, uncertainties and assumptions that are contained in our filings from time-to-time with the Securities and Exchange Commission and are also reflected in this morning's press releases. While these forward-looking statements are based on information currently available to us, if one or more of these risks or uncertainties materialize or if our underlying assumptions prove incorrect, actual results may vary materially from those we projected or expected. In providing these remarks, neither partnership has any obligation to publicly update or revise any forward-looking statement, whether as a result of new information, future events or otherwise, unless required by law to do so. Finally, we will also be discussing certain non-GAAP financial measures. Definitions and reconciliations of the differences between these non-GAAP measures and the most directly comparable GAAP financial measures are contained at the end of the ARLP press release which has been posted on ARLP’s website and furnished to the SEC on Form 8-K. With the required preliminaries out of the way, I'll start this morning with a review of our operating and financial results for the most recent quarter, and then turn the call over to Joe Craft, our President and Chief Executive Officer. As announced earlier this morning, ARLP reported strong financial results for the 2018 quarter benefiting from an $80 million gain from the settlement of a coal contract dispute, net income attributable to ARLP increased 48.6% to $155.9 million, and EBITDA rose 28.7% to $228.7 million both as compared to the 2017 quarter. Net income attributable to ARLP per basic and diluted limited partner unit for the 2018 quarter was a $1.16 including the gain from the settlement, and excluding the gain from the settlement matched the streets consensus estimates. Results for the 2018 quarter would have been even better had we not experienced weather-related transportation disruptions on the River systems which delayed approximately 1.4 million tons of planned shipments during the 2018 quarter. We expect these funds will be shipped as soon as River conditions, barge and port operations return to normal. As anticipated, coal sales price realizations fell 1.3% in the 2018 quarter compared to the 2017 quarter that were slightly higher than the sequential quarter due to improved price realizations on metallurgical coal sales at our Mettiki mine and sales mix in the Illinois Basin. Segment adjusted EBITDA expense per ton was impacted by reduced coal sales volumes during the 2018 quarter compared to both the prior year and sequentially but we believe our EBITDA margins for the year will be comparable to ARLP's prior guidance once the inventory tons are shipped over the balance of the year. The contribution to ARLP'S financial goals from our investments in oil and gas minerals and gas compression services continue to increase in the 2018 quarter. Primarily due to distributions from our preferred equity investment in gas compression services, income related to these activities in the 2018 quarter more than doubled compared to the 2017 quarter. Improved results from oil and gas minerals contributed to the 5.9% increase compared to the sequential quarter. And comparing results for the 2018 quarter, I want to again remind everyone of the impact of our exchange transaction last July on the calculation of ARLP's per unit. As we've previously discussed, elimination of the IDRs and the exchange transaction significantly reduces the amount of ARLP'S net income allocated to the general partners. This reduced allocation along with the issuance of approximately 56.1 million common ARLP units, creates a lack of comparability between periods before and after the exchange. We have included at the end of this morning’s earnings release, a comparison of ARLP’s actual EPU and pro forma EPU as if the exchange transaction had occurred on January 1, 2017, and we will again provide investors with a detailed pro forma presentation of ARLP’s EPU in our upcoming Form 10-Q filing with the SEC. We also want to provide an update on the previously announced simplification of our partnership structure. As a reminder, this simplification will be accomplished through a series of transactions which will result in AHGP becoming a wholly-owned subsidiary of ARLP and the distribution of all ARLP common units held by AHGP and its subsidiaries to the unitholders of AHGP in exchange for their AHGP common units. ARLP's Form S-4 has been declared effective by the SEC. Consent solicitation statements have been mailed through all AHGP unitholders, and certain unitholders on the majority of AHGP's outstanding common units have agreed to support the simplification. We expect to complete the simplification of the Alliance Partnerships during the 2018 second quarter after which ARLP will be the only publicly traded Alliance entity. Turning now to the balance sheet. We reduced our debt by $67.8 million and ended the 2018 quarter with ample liquidity of $671.4 million and leveraged at a conservative 0.86 times total debt to trailing 12 months adjusted EBITDA. The ARLP's balance sheet remains a strength with our stable long-term capital structure and simplified financial structure providing us the flexibility and capacity to execute our plans and take advantage of future opportunities. With that, let me turn the call over to Joe for his take on the first quarter performance, our perspectives on the coal markets, and ARLP's outlook for the balance of 2018. Joe?