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Filing Detail
Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend]
SEC Accession No. 0000354204-12-001151
Filing Date
2012-02-14
Accepted
2012-02-13 20:29:41
Documents
1

Document Format Files

Seq Description Document Type Size
1 SCHEDULE 13G/A rrd406.htm SC 13G/A 50183
  Complete submission text file 0000354204-12-001151.txt   52092
Mailing Address 1250 N.E. LOOP 410 SUITE 1000 SAN ANTONIO TX 78209
Business Address 1250 N.E. LOOP 410 SUITE 1000 SAN ANTONIO TX 78209 5128287689
PIONEER DRILLING CO (Subject) CIK: 0000320575 (see all company filings)

IRS No.: 742088619 | State of Incorp.: TX | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-33018 | Film No.: 12601856
SIC: 1381 Drilling Oil & Gas Wells

Mailing Address 6300 BEE CAVE ROAD BUILDING ONE AUSTIN TX 78746
Business Address 6300 BEE CAVE ROAD BUILDING ONE AUSTIN TX 78746 (512) 306-7400
DIMENSIONAL FUND ADVISORS LP (Filed by) CIK: 0000354204 (see all company filings)

IRS No.: 222370029 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A
SIC: 0000