[Early Oil Rig], photograph, Date Unknown; (https://texashistory.unt.edu/ark:/67531/metapth38447/m1/1/: accessed July 5, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
[Early Oil Rig], photograph, Date Unknown; (https://texashistory.unt.edu/ark:/67531/metapth38447/m1/1/: accessed July 5, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .