James King directly appeals after he pleaded guilty to a drug-conspiracy charge,, and the district court 1 sentenced him to the statutory minimum, in accordance with his written plea agreement. His counsel has filed a brief under Anders v. California, 386 U.S. 738, 87 S.Ct. 1396, 18 L.Ed.2d 493 (1967), acknowledging an appeal waiver in the plea agreement, and questioning the reasonableness of King’s sentence. In addition, counsel seeks leave to withdraw.

After careful de novo review, we enforce the appeal waiver. See United States v. Andis, 333 F.3d 886, 889-92 (8th Cir. 2003) (en banc) (standard for enforcing appeal waivers); United States v. Scott, 627 F.3d 702, 704 (8th Cir. 2010) (standard of review). First, we conclude that counsel’s challenge to King’s sentence falls within the scope of the appeal waiver. Second, based on King’s statements under oath at the plea hearing, we are satisfied that he entered into both the plea agreement and the appeal waiver knowingly and voluntarily. See Nguyen v. United States, 114 F.3d *513 699, 703 (8th Cir. 1997). Third, we conclude that no miscarriage of justice would result from enforcing the waiver. See Andis, 333 F.3d at 891-92. Finally, having independently reviewed the record pursuant to Penson v. Ohio, 488 U.S. 75, 109 S.Ct. 346, 102 L.Ed.2d 300 (1988), we find no nonfrivolous issues outside the scope of the appeal waiver. Accordingly, this appeal is dismissed, and we grant counsel leave to withdraw.