Anecdotally, I added 40 miles per week of running (actually performance-oriented running, not just casual jogging) to my lifestyle over the past year and it has had literally zero effect on my weight, or, according to my Fitbit Aria scale, my bodyfat. I also haven't been trying to lose weight and have been doing quite a bit of bodyweight strength exercising, so I am not at all surprised by this. I did drop my resting heart rate to about 55bpm and knock 2 minutes off my 5k time (22min --> 20:00), though, which was my goal.