The draw was enough for United to eclipse Liverpool’s tally of 18 league crowns as the visitors secured their 12th title under Sir Alex Ferguson.
United’s celebrations looked as if they would be put on hold after Brett Emerton’s 20th-minute half-volley put the home side in front.
But Rooney’s confident spot-kick sealed the required point after Paul Robinson brought down Javier HernÃƒÂ¡ndez, sparking wild celebrations at the final whistle.
“It was a fantastic performance by the lads. Everyone connected with the club has had a great day. The players worked their socks off to get the result we needed.
“[Eclipsing Liverpool’s record of 18 league titles] was a big challenge, the 80s was Liverpool’s time. When I came down I never thought we could have achieved what we have of course, but I always looked at getting that first one.
“It wasn’t an easy game, we were 1-0 down but they kept on going, they don’t give in. It’s a local derby and they’re fighting for their lives and they were also looking for that point.
“I thought we didn’t move the ball quick enough in the first half but we were far more dangerous in the second. Today we did it the right way. We went for it and I think we deserved the result.
“Now we can consider next week [against Blackpool at Old Trafford] and who should be rested and who shouldn’t be rested, but we will go out to win the game next Sunday.”
“After the year I’ve had, so many ups and downs, this is fantastic. Winning the Premier League is amazing, getting that 19th title. For me personally, for the fans and the club, it’s a great feeling for us.”
“It’s really great. I am really happy and it is more than I imagined. I dreamed of this moment and it is fantastic to be at this club.”
“It’s been a hard couple of years for me and now I have good movement and I’ve been working hard in training. If you work hard you get your rewards, and this title is for the fans.”
“Twenty years ago we were nowhere near Liverpool, but we’ve gone past our biggest rivals. This is why I keep going, for day’s like this, it’s amazing.”
MORE: Man United latest news
MORE: Arsenal latest news
MORE: Chelsea latest news
MORE: Liverpool latest news