At 10 a.m. on April 4, 2001, representatives of 13 environmental groups were brought into the Old Executive Office Building for a long-anticipated meeting. Since late January, a task force headed by Vice President Cheney had been busy drawing up a new national energy policy, and the groups were getting their one chance to be heard. A confidential list prepared by the Bush administration shows that Cheney and his aides had already held at least 40 meetings with interest groups, most of them from energy-producing industries. By the time of the meeting with environmental groups, according to a former White House official who provided the list to The Washington Post, the initial draft of the task force was substantially complete and President Bush had been briefed on its progress. In all, about 300 groups and individuals met with staff members of the energy task force, including a handful who saw Cheney himself, according to the list, which was compiled in the summer of 2001. For six years, those names have been a closely guarded secret, thanks to a fierce legal battle waged by the White House. Some names have leaked out over the years, but most have remained hidden because of a 2004 Supreme Court ruling that agreed that the administration's internal deliberations ought to be shielded from outside scrutiny. The list of participants' names and when they met with administration officials provides a clearer picture of the task force's priorities and bolsters previous reports that the review leaned heavily on oil and gas companies and on trade groups -- many of them big contributors to the Bush campaign and the Republican Party. It clears up much of the lingering uncertainty about who was granted access to present energy policy views to Cheney's staff.