The research work lilted: impact of advertising in marketing of forte petroleum ltd product with particular reference to forte petroleum plc Port-Harcourt Cross-River state. In carrying out this research, the researcher used deceptive to survey research design, stratified sampling method and questionnaire method in generating data for the study. Simple percentage ratio was used to analyze the question while chi-square (X2) was used to test the hypothesis. From the questionnaire distributed, it shows that the company corporate objective is maximizing profit, but it was concluded that the company should not aim of maximizing profit only but the satisfaction of customers should be put to heart. The population of study is 250. Total number of 11 questionnaire were distributed to the staff oft eh company but 55 were returned and correctly filled while 16 were not returned. After the analysis, it was seen that the major problem facing advertising campaign in the company is using wrong choice of advertising media. It was concluded that a major proper media choice should be made by the company.[email protected].