Dropping of oil price has significant influence in Oil & Gas industry in term of cost saving. A lot of efforts and initiatives were made in order to sustain with the current situation and to facilitate the Oil and Gas industry to lead the market. Existing of alternative energy is another challenge which threats the market. ILT initiative was introduced in the Drilling Function to Drill Wells in more efficiency and high performance considering the priority for safety and integrity. The main objective of ILT is to identify the area's of invisible lost time, track it and to Eliminate As Low As Possible (ALAP) and to Drill Well in Shortest Time compare it with Best Of Best Wells (BOB) During the period when the oil price was high, a lot of expansion in terms of rigs and manpower were there, where there are no focus in the performance of the wells which lead to big inflation in well duration resulted by Non Production Time and Invisible Lost Time. Invisible Lost Time is the hidden operation time which is lost due to many factors such as shortage of the key players, lack of experience, reluctant of people and shortage of proper equipment & tools. All these factors are affecting the main drive mechanism in the well which is, the ROP, Tripping Speed and Connection Time. A clear road map for the project was set for three phases. Pilot Phase, where focus was on the mentioned areas and identify the gaps and lesson learns. 2nd Phase, where the gaps can be filled and the lesson learns can be applied to get more results. The Final Phase were can be implemented to all the rigs after Healthy Check were implemented in Phase I & Phase II. This Paper will describe clearly the Objective of the ILT Project, The Key Elements of ILT; the Challenges were faced to achieve the Target, Case Study and Recommendation.