2020 Virtual Annual Meeting Information And Materials

In light of on-going developments related to the coronavirus (COVID-19) pandemic and after careful consideration, the Board of Directors has determined to hold a virtual annual meeting in order to protect the health and safety of our stockholders, board members, employees and community. We are committed to ensuring that stockholders will be afforded the same rights and opportunities to participate as they would at an in-person meeting. You will be able to attend the meeting online, vote your shares electronically and submit questions during the meeting by visiting www.virtualshareholdermeeting.com/MUSA2020. To participate in the virtual meeting, you will need the 16-digit control number included on your Notice, proxy card or voting instruction form. The meeting webcast will begin promptly at 8:00 a.m., Central Time on Thursday, May 7. We encourage you to access the meeting prior to the start time. Online check-in will begin at 7:45 a.m., Central Time. If you experience technical difficulties during the check-in process or during the meeting please call 800-586-1548 (U.S.) or 303-562-9288 (International) for assistance.

2019 Annual Report
2020 Proxy Statement

2019 Annual Meeting Information And Materials

The 2019 Annual Shareholder Meeting will be held at the South Arkansas Arts Center at 110 East 5th Street, El Dorado, Arkansas 71730 on May 1, 2019 at 8:00 a.m., Central Time.

2018 Annual Report
2019 Proxy Statement

2018 Annual Meeting Information And Materials

The 2018 Annual Shareholder Meeting will be held at the South Arkansas Arts Center at 110 East 5th Street, El Dorado, Arkansas 71730 on Thursday, May 3, 2018 at 8:00 a.m., Central Time.

2017 Annual Report
2018 Proxy Statement

2017 Annual Meeting Information And Materials

The 2017 Annual Shareholder Meeting will be held at the South Arkansas Arts Center at 110 East 5th Street in El Dorado, Arkansas 71730 on Thursday, May 4, 2017 at 1:30 p.m., Central Time.

2016 Annual Report
2017 Proxy Statement

2016 Annual Meeting Information And Materials

The 2016 Annual Shareholder Meeting was held at the South Arkansas Arts Center at 110 East 5th Street in El Dorado, Arkansas 71730 on Thursday May 5, 2016.

2015 Interactive Annual Report
2016 Proxy Statement

2015 Annual Meeting Information And Materials

The 2015 Annual Shareholder Meeting was held at the South Arkansas Arts Center on Wednesday, May 6, 2015 at 1:00 p.m., Central Time.

2014 Interactive Annual Report
2015 Proxy Statement

2014 Annual Meeting Information And Materials

The 2014 Annual Shareholder Meeting was held at the El Dorado Conference Center, on Wednesday, May 7, 2014 at 2:00 p.m., Central Daylight Time.

2013 Interactive Annual Report
2014 Proxy Statement