The 2015 Lucas Oil 200 was the 6th stock car race of the 2015 NASCAR Camping World Truck Series, and the 16th iteration of the event. The race was held on Friday, May 29, 2015, in Dover, Delaware at Dover International Speedway, a 1-mile (1.6 km) permanent oval shaped racetrack. The race took the scheduled 200 laps to complete. Tyler Reddick, driving for Brad Keselowski Racing, would make a pass for the lead on Erik Jones with eight laps to go, and held off a charging Daniel Suárez to earn his second career NASCAR Camping World Truck Series win, and his second of the season.^[1] To fill out the podium, Suárez, driving for Kyle Busch Motorsports, and Jones, driving for Kyle Busch Motorsports, would finish 2nd and 3rd, respectively.

Dover International Speedway (formerly Dover Downs International Speedway) is a race track in Dover, Delaware. The track has hosted at least one NASCAR Sprint Cup Series race each year since 1969, including two per year since 1971. In addition to NASCAR, the track also hosted USAC^[2] and the Indy Racing League. The track features one layout, a 1 mile (1.6 km) concrete oval, with 24° banking in the turns and 9° banking on the straights. The speedway is owned and operated by Speedway Motorsports.

• (R) denotes rookie driver.
• (i) denotes driver who is ineligible for series driver points.

The first and only practice session was held on Thursday, May 28, at 2:00 PM EST, and would last for 2 hours and 25 minutes.^[3] Erik Jones, driving for Kyle Busch Motorsports, would set the fastest time in the session, with a lap of 23.094, and an average speed of 155.885 mph (250.873 km/h).^[4]

Qualifying was held on Friday, May 29, at 12:45 PM EST.^[3] The qualifying system used is a multi car, multi lap, three round system where in the first round, everyone would set a time to determine positions 25–32. Then, the fastest 24 qualifiers would move on to the second round to determine positions 13–24. Lastly, the fastest 12 qualifiers would move on to the third round to determine positions 1–12.^[5]

Ryan Blaney, driving for Brad Keselowski Racing, would win the pole after advancing from the preliminary rounds and setting the fastest time in Round 3, with a lap of 22.718, and an average speed of 158.465 mph (255.025 km/h).^[6]

Kyle Martel was the only driver who failed to qualify.

Drivers' Championship standings Pos Driver Points 1 Matt Crafton 217 1 2 Tyler Reddick 246 (-11) 1 3 Erik Jones 243 (–14) 4 Johnny Sauter 217 (–40) 5 John Wes Townley 186 (–71) 6 Timothy Peters 183 (–74) 7 Cameron Hayley 177 (–80) 1 8 Spencer Gallagher 177 (–80) 1 9 Daniel Hemric 176 (–81) 1 10 Ray Black Jr. 168 (–89) Official driver's standings Note: Only the first 10 positions are included for the driver standings.