Wasn't kidding about 2k newspapers being extremely long to get. At current income it will take 500,000 days to go from 1850 to 1950. Let alone 2000. 1900 will bump income by about 2.6x though, should be able to get that by the end of the week and calc 2000 out. Its going to require into the quintdecillion angels at least.
GameJoker, remember your banks too. after 800 of everything and the 11x bank achievement they are actually 3x an oil well, so at 1200 rigs, you should also have about 1105 banks for the best income increase per spent dollar ratio.
Movie theaters are the same income as oil rigs, so buy them over a rig if they are cheaper too, so you should have almost 1000 there at 1200 rigs.