1 Middle Horizon Wari (AD 600-1000). The strongest evidence for the pre-Inca use of quipu record keeping is from the Middle Horizon Wari (or Huari) empire, an early urban and perhaps state level Andean society centered at the capital city of Huari, Peru. 2  Late Horizon Inca (1450-1532).
The salaries of petroleum geologists correspond to their years of experience, according to the 2012 salary survey released by the American Association of Petroleum Geology. For example, workers with up to two years of experience averaged $98,700 per year, with a high of $110,000, and a low of $85,000.
It's not very common for Geologists to move on to become Petroleum Geologists. Average pay for a Petroleum Geologist is $103K annually. The most common next step for a Geologist is to become a Senior Geologist or an Environmental Project Manager. The former position pays an additional $27K per year on average, and the latter position pays $6K more per year.