What follows is an opinion from the Supreme Court of the United States. Your task is to identify the disposition of the case, that is, the treatment the Supreme Court accorded the court whose decision it reviewed. The information relevant to this variable may be found near the end of the summary that begins on the title page of each case, or preferably at the very end of the opinion of the Court. For cases in which the Court granted a motion to dismiss, consider "petition denied or appeal dismissed". There is "no disposition" if the Court denied a motion to dismiss.

Opinion:
April 24, 1950.
Per Curiam Decisions.
No. 490.
United States v. Cotton Valley Operators Committee et al.
Argued April 18, 1950.
Decided April 24, 1950.
Assistant Attorney General Bergson argued the cause for the United States.
With him on the brief were Solicitor General Perlman, Charles H. Weston, Stanley M. Silverberg and Richard E. Guggenheim. Arthur O’Quin argued the cause for the Ohio Oil Co. et al., appellees.
With him on the brief were Charles D. Egan, David E. Smitherman, John M. Madison, W. Scott Wilkinson, H. F. Aby, Leslie Moses, A. M. Gee, C. F. Currier and Leon O’Quin. Charles L. Black argued the cause for the Stanolind Oil & Gas Co. et al., appellees.
With him on the brief were Donald Campbell, W. W. Heard and Dan Moody. Chas. B. Wallace, Walace Hawkins and Earl A. Brown submitted on brief for the Magnolia Petroleum Co., appellee.
Appeal from the United States District Court for the Western District of Louisiana.
Per Curiam:
The judgment is affirmed by an equally divided Court.
Mr. Justice Clark took no part in the consideration or decision of this case.

Question: What is the disposition of the case, that is, the treatment the Supreme Court accorded the court whose decision it reviewed?

Choices:
stay, petition, or motion granted
affirmed (includes modified)
reversed
reversed and remanded
vacated and remanded
affirmed and reversed (or vacated) in part
affirmed and reversed (or vacated) in part and remanded
vacated
petition denied or appeal dismissed
certification to or from a lower court
no disposition

Answer: 1