Laser-induced fluorescence KA-14 LIDAR, developed and employed at the National Aviation Academy of Azerbaijan was used for detection of emission spectra of oil spills on the surface of the Caspian sea and earth surface of the Absheron peninsula. It is known, that oil spills may take place due to leakage of oil from different Oil-Gas-Production Companies and Joint Ventures of the State Oil Company of Azerbaijan Republic. There are 8 Oil-Gas-Production Companies and 4 Joint Ventures in Azerbaijan Republic. Fluorescence spectra were excited by 355 nm line of CFR 200- type laser (QUANTEL) with parameters: diameter of laser beam spot- &diameter; = 5 mm (after collimation- 40 mm); frequency of excitation- f = 20 Hz; pulse duration and power of laser- τ= 7 ns and 60 mJ, respectively. Analysis of differences of the spectral positions of maximums of fluorescence spectra, forms of the emissions spectra, as well as peculiarities of fine structures in emission spectra allowed with a high degree of availability to determine from which Oil-Gas-Production Company of State Oil Company of Azerbaijan Republic (including OGPC “Neftjanije Kamni”) leakage took place on the surface of the Caspian sea and on the earth of Absheron peninsula. Results obtained allow, for the first time, to create a data bank of fluorescence spectra of crude oil extracted on the earth of the Absheron peninsula of Azerbaijan as well as from adjacent water areas of the Caspian sea, including OGPC "Neftjanije Kamni."