In this presentation, the speaker will provide an overview of the physics principle in Oil and Gas exploration. The talk covers acoustics, Electromagnetics, and signal processing in general. The exploration in the oil and gas industry relies on the “sensors”, either on-site or remotely, and sensing principles are all based upon Physics. On top of the physics principle, the design of the sensors needs to excite or augment the favorable signals and suppress the unwanted ones; Also, advanced signal processing is in parallel to the hardware/instrumental advances, where signal enhancement, noise reduction, mode identification/separation are some of the key areas. The most critical path is to convert the signals to the physics ground truth, i.e., the physical properties of objects inside or around the wellbore. Inversion is the current approach we take to walk through the critical path. We also embrace the latest technique of machine learning and AI in Data science, and they may empower the automation and real-time applications of the algorithms. I will open a discussion with the professors in physics for potential collaborations.