The power company and heating fuel providers will give you the historical usage if you tell them that you are trying to determine costs to purchase the property.

I rent to traveling refinery contractors. 

Large amount of college students, military, traveling professionals such as nurses, doctors, teachers, etc? 

Does anyone have a recommendation for a property manager in the area that could do nightly rentals or maybe someone who could target groups like traveling nurses, business people on short term contracts or families waiting for their home to be built?

I currently live in Utah, but travel to Oklahoma frequently for my day-job.  

If you have to rule out your back yard, pick a city you know, you travel to (family?)

There is also a meetup in Toms River at Baker's Water Street Bar & Grill, if you wanted to travel a little further south.  

I'm single have no kids and I travel 2-3 weeks out of the month for my job.

The tenants that recently moved out did a lot of traveling, so there was great opportunity for them to bring back bed bugs and give me a headache.

I'm a local investor in the Harrisburg area as well and I will second that you should check out some of the local real estate clubs at www.meetup.comThere are a couple in the Harrisburg area as well as Camp Hill, York, Lancaster, and Lebanon depending on how far you're willing to travel and your schedule.