D.M.
S.,
It sounds like your little is experiencing a growth spurt and this is totally common. My son used to require night feedings during growth spurts, at an increased interval. Not sure if prior to this she was night fed, but I did feeding on demand and this helped to get more sound sleep at night. By this age about 5 hours at a time. She is crying most likely because she is hungry and my only evidence is the 1oz. of formula she takes and then sleeps. My son would take a bedtime bottle and wake to feed 3-5 hours later during growth spurts. I fed him 3-4oz at night and just let him take what he would, this would give him a fully belly and longer sleep periods. Just make sure you clean her teeth with a washcloth after she feeds.
Teething could also be an issue at this stage, so you may want to check her gums for bumps or growth. Hyland's has some teething tablets that I love and also you may want to check out Clove Oil which I used and have used since my son starting teething.
Remember if she is crying and not settling herself back to sleep in a good amount of time then, she needs something. I would give my son about 10 minutes to settle but, I would listen to the sounds if he sounded like he needed something I would pick him up and not wait, but if he was just rustling around he'd usually settle and sleep. Babies don't cry for no reason and I promise once you figure out what she really needs, then the sleep will come.
Be patient and it will work out.