According to the resource map on the wiki, here are all the oil veins. However, there's no gas veins listed and I don't think they exist, I haven't seen any either. Gas seems to come from drops and the big yellow gas plants like in the swamp from Genesis 1.
Oil Veins for Genesis 2
-204005 -252534 1611 -78.85 -39.02
-215133 -173030 -24153 42.89 -45.45
-375692 -182791 -13317 160.47 -59.55
-532903 -183486 -13457 -65.91 -53.64 (this one is hidden underneath a breakable rock)
-536455 -186294 -13606 158.62 -46.90
-580951 63540 -5148 106.03 -21.20
-424748 42608 -5250 -72.89 -38.87
-386937 46554 -10706 34.74 -40.84
-382542 45131 -10628 -29.99 -36.70
-300460 63030 -10588 -161.55 -46.67
-312234 112000 -3842 -129.86 -36.29
-307441 108680 -3624 -131.44 -22.71
-311937 105538 -3622 -155.91 -53.38
-164292 53784 -12383 -33.88 -25.54
-152859 62145 -10269 -4.01 -14.63 (hidden under a breakable tree)
-152289 174010 -13736 -160.22 -55.22
-233510 160105 -9667 -96.13 -6.78
-221991 220076 -13623 103.56 -16.29
-407008 323127 5241 69.14 -12.45
-412927 334069 3739 -17.67 3.94
Thx for the Help! All are replaced/placed. Greetings Mschmidi