Alta Mesa Holdings, LP

1.03,2.04,5.02,7.01,9.01

General form for quarterly reports under Section 13 or 15(d)

Notification of late filing of Form 10-Q

2.04

1.01,5.02,9.01

General form for quarterly reports under Section 13 or 15(d)

Annual report pursuant to Section 13 or 15(d)

2.02,9.01

Notification of late filing of Form 10-Q

8.01

Notification of late filing of Form 10-K

2.02,7.01,9.01

5.02,7.01,9.01

1.01,5.02,7.01,9.01

General form for quarterly reports under Section 13 or 15(d)

2.02,7.01,9.01

2.02,7.01,9.01

Notification of late filing of Form 10-Q

General form for quarterly reports under Section 13 or 15(d)

4.01,5.02,9.01

General form for quarterly reports under Section 13 or 15(d)

Notification of late filing of Form 10-Q

Annual report pursuant to Section 13 or 15(d)

2.02,7.01,9.01

2.02,7.01,9.01

1.01,2.01,2.03,3.03,5.01,5.02,7.01,9.01

7.01,9.01

General form for quarterly reports under Section 13 or 15(d)

2.02,7.01,9.01

Prospectus Supplement for Primary Offering

Notice of Effectiveness

Correspondence with the SEC

Letter from the SEC

Registration statement under Securities Act of 1933

7.01,9.01

Correspondence with the SEC

Regulation FD Disclosure

General form for quarterly reports under Section 13 or 15(d)

1.01,3.03,7.01,9.01

Regulation FD Disclosure

Notification of late filing of Form 10-Q

General form for quarterly reports under Section 13 or 15(d)

Annual report pursuant to Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

Notice of Effectiveness

Prospectus Supplement for Primary Offering

Registration statement under Securities Act of 1933

Notice of Effectiveness

Prospectus Supplement for Primary Offering

Registration statement under Securities Act of 1933 (amendment)

Registration statement under Securities Act of 1933