Introduction Bjorlykke defines petroleum engineering as “a field associated with the production of natural gas and crude oil” (19). The exploration, extraction, and production of hydrocarbons are high-tech practices characterized by extensive use of resources. The exploration of hydrocarbons might not be executed successfully without the involvement of geological engineers. The role of these engineers is to investigate and control the impact of earth procedures on human activities such as petroleum extraction. This discussion therefore examines how geology is applicable in petroleum engineering. The paper goes further to explain why geology has become one of the core courses for petroleum engineering educational programmes. Application of Geology in Petroleum Engineering The extraction of various hydrocarbons begins with the placement of oilfield structures on the targeted location. Throughout the process, petroleum engineering companies must complete numerous geological surveys. Such companies will definitely outsource geologists or employ them to complete such surveys. These studies must be completed before any construction begins (Hyne 19). This is the case because the foundation of the targeted oilfield structures must be designed in accordance with the aspects of the terrain. This practice is done to ensure the extraction process is conducted without any challenge. More often than, oil deposits and hydrocarbons are “discovered in the most unlikely places such as at seas” (Hyne 26). When reserves of oil are discovered, it is mandatory to undertake various activities such as Remotely Operated Vehicles (ROV) and Shallow Seismic (SS) surveys. It is agreeable that many oil drilling firms contract these services from geological engineers (Weszkalnys 618). This fact is a clear indication that geology is an important field that cannot be separated from petroleum engineering. Before undertaking any oil exploration process, petroleum companies must use the findings presented by geological engineers or geoscientists (Taylor 3). For instance, geologists use a wide range of tools such as chisels and hammers to collect soils samples. They go ahead to use technological equipment to search for mineral deposits and oil reserves (Hyne 72). Geoscientists use radar equipment to identify regions that might have mineral deposits. This fact explains why petroleum engineering is supported by the activities, competencies, and skills of these geoscientists. During the discovery process, petroleum companies collaborate with geologists to search for oil deposits (Taylor 5). Geological engineers work with various agencies and organizations to preserve the environment. Bjorlykke believes that environmental conservation is something that has gained much support with the past six decades (47). The case of Beyond Petroleum (BP) can be used to examine the relationship between petroleum engineering and geology. The infamous “BP oil disaster started in 2010 in the Gulf of Mexico” (Hyne 104). After the disaster, BP liaised with many environmentalists and geoscientists to ensure the most appropriate measures were put in place to deal with the leakage. The other critical issue is that geoscientists (and petroleum geologists) possess adequate competencies that make it easier for them to target specific regions for oil. Additionally, the petroleum geologi