It's a navel orange so seedless. And since Washington is our most prolific navel orange around here, you probably have a Washington navel. About as good of an orange as I've ever tasted. Will the rind wash off under water so it's clean? I suspect you live in a dusty area and get little rain under the canopy and the oranges are just dirty, though the white stuff in the navel in your third pic is odd. You can see where moisture has ran down the orange creating the muddy streaks.

Wallaman, you have a ton of suckers growing up from the base of the tree trunk. You should remove those ASAP and return this tree to a single trunk beauty. It is a navel as fireball stated above and looks to be at least 25-30 years old. You have some twig die back in the center of the tree that needs to be cut out before spring, no big deal branches die sometimes we just need to help the tree get rid of them. It will sprout new branches and the void will get filled back in with time. Your tree is very nice, wish I had a big full tree like that. It probably hasn't been fertilized in a long time, if ever at all. In about 6 weeks from now, sprinkle about 5 lbs of good citrus fertilizer under the canopy and water it in for about an hour with an old school lawn sprinkler that moves back and forth (unless you have irrigation). Then repeat in May and August and sit back and enjoy the show the tree puts on. Your tree will be so full of blooms by the end of February beginning of March it will be incredible and the smell will be equally astonishing. Hope this helps, Best of luck and keep us posted on its progress.

Evan

My goodness what a bueaty, after you follow the advice from Evan post some updated pics.

Thanks for the advice everyone will do!!

Nice looking standard size Washington navel tree. Looks like somebody in the fairly recent past had been pruning this one and tending to it well. Maybe a gardener or previous resident? Probably won't take a long time to get this tree back in shape and producing some sweet oranges! Just do what Evan says above and be sure to water it properly.

If the fruit discoloration does not wash off, it may be the result of damage from mites that was done when the fruit was very small. Watch closely the new growth in the Spring and if you see crinkly edges on the new leaves, it is a mite (most likely broad mite); spray it for mites (usually only needs one time per year) and you should avoid future problems.