In recent decades, new automation technologies and new communications protocols were widely leveraged by Oil and Gas Industries, regardless of upstream, middle stream, and downstream, to improve productivity and to have better monitoring. On the other hand, it also creates new cybersecurity problems, including device vulnerabilities, insecure OT protocols and communications, and OT industries prone to attackers. Nevertheless, the Oil and Gas industries are not so tolerant because a single spark can start a prairie fire. Although Taiwan is not a major player in the Oil and Gas Industry, it's still an issue because we deeply rely on it. In this presentation, we will go through the pros and cons of Cybersecurity for Oil and Gas industries and provide resolutions/mitigations for related problems.