United States

                          Corporate Office, Houston Region (Midcontinent and Gulf Coast), Gulf of Mexico Region
                          2000 Post Oak Blvd., Suite 100
                          Houston, TX 77056-4400
                          +1 713 296 6000
                          +1 800 272-2434 Toll Free

                          Permian Region
                          303 Veterans Airpark Lane, Suite 1000
                          Midland, TX 79705
                          +1 432 818 1000
                          +1 432 818 1190 Fax

                          San Antonio Region
                          17802 IH 10 West, Suite 300
                          San Antonio, Texas 78257
                          +1 210 678 3900

                          Did you know that your Internet Explorer is out of date?

                          To get the best possible experience using our website we recommend that you upgrade to a newer version or other web browser. A list of the most popular web browsers can be found below.

                          Just click on the icons to get to the download page

                          • Internet Explorer 7+
                          • Firefox 3+
                          • Chrome 2.0+
                          4438x亚洲视频最新免费