The majority of the oil sample collection was collected from selected Ohio oil and gas producing horizons by students of the Ohio State University from August 1981 to March 1982. A small number of samples have been donated by other companies and individuals. The samples were exposed to open air and subjected to temperature changes during collection, but now the samples are sealed in test tubes or glass jars and refrigerated. The following producing horizons were sampled: Trempeleau, Rose Run, Trenton, Clinton/Newburg, Oriskany, Gordon/Ohio, Berea, and Injun.
The majority of the oil sample collection was collected from selected Ohio oil and gas producing horizons by students of the Ohio State University from August 1981 to March 1982. A small number of samples have been donated by other companies and individuals. The samples were exposed to open air and subjected to temperature changes during collection, but now the samples are sealed in test tubes or glass jars and refrigerated. The following producing horizons were sampled: Trempeleau, Rose Run, Trenton, Clinton/Newburg, Oriskany, Gordon/Ohio, Berea, and Injun.
