Greenwire: The oil and natural gas industry’s biggest influence group will launch a major lobbying campaign next month, staging rallies and running advertisements tying the sector to job creation and opposing tax changes and tougher drilling regulations. American Petroleum Institute kicks off what it dubs “citizen rallies” on Sept. 1 with events in Houston, Corpus Christi and Beaumont, Texas. Partnering with local energy groups and other business organizations, the trade group wants to drive …