Gram staining. Gram staining or Gram stain, also called Gram's method, is a method of staining used to differentiate bacterial species into two large groups (gram-positive and gram-negative). The name comes from the Danish bacteriologist Hans Christian Gram, who developed the technique.
Horizon Oil Sands. Horizon Oil Sands The Horizon Oil Sands project (or Horizon) is an oil sands mining and upgrading project. Horizon is 100% owned and operated by Canadian Natural Resources Limited.
The total equity value of U.S. energy exploration and production companies, including shale oil and gas, was $650 billion, as of April 30, Bloomberg data show. Figure 6 below shows that equity offerings by U.S. oil and gas exploration and. production companies reached a new record in the first quarter of this year.