Seismic Prospector

Oil/Gas will not be actual in world blocks, but under bedrock. First you have to find chunks with oil.

Place a Seismic Prospector, right click with 8 TNT in your hand.

Right click on the prospector with a data stick. Put the data stick in a scanner to process the data. Place the data stick in a printer with liquid ink and 3 paper to get printed paper. Place the printed paper in an assembler with liquid glue and one leather to a printed book with the actual readable data.

It is not recommended that you leave the scanned data stick inside of a printer with more than 3 paper as it will continue to create copies and consume resources.

Once you find the Oil you want, place a oil derrick on top.