The Venango Museum is a good place to visit for those touring the Oil Region. It has information about oil and its uses, including its connection to local history. Ida Tarbell has her own display, and there are local artifacts from the days when the area was rich with oil. They also have some artifacts from the old theatre and the Wurlitzer is a highlight for many visitors. They'll play it for you if you ask and they often have scheduled Wurlitzer concerts.
The museum was designed with children in mind, so it's defintely a nice place to bring kids. There are a few nice interactive exhibits that kids should really enjoy.
Note that the museum is closed from January through March. It opens at the beginning of April. Entrance is $4 adult, $2 children 12 and up, $1.50 for under 12.
Hassen Heights is a nice park in Oil City. They have pavillions for picnics, family get togethers, or other special events. There is also a nice playground for children. It's a nice quiet place to go and enjoy nature. There are some trails you can explore, and the rhododendrons are very beatiful sights in late May to early June (in picture). For those who just want to relax and get out of the town, Hassen Heights is a nice place to go!
Justus Park is located near the Allegheny River. It contains a stage and a nice playground for children. From spring through summer, concerts are held on the stage here. Usually they are local performers. Justus Park is the best place in Oil City to watch the fourth of July fireworks, and Easter egg hunts are often held here!
Favorite thing: If you come to Oil City to learn more about the discovery of oil, you'll probably be disappointed. There really isn't much in Oil City about the discovery of oil. If you want to go learn about the discovery of oil, go to Drake Well State Park (VT has a page for it). There is a museum there with exhibits, pictures, artifacts, and information regarding oil heritage.