United States

Top 8 largest US Companies in the Oil & Gas Drilling industry by Market Cap

This is the list of the largest public listed companies in the Oil & Gas Drilling industry from the United States by market capitalization with links to their reference stock.

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Top Oil & Gas Drilling Companies from the United States as of Jan. 11, 2021

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Rank Company Market Cap (USD) Country Sector Industry
1 Helmerich & Payne, Inc. $2.98 B

(Jan. 1, 2026)

 United States US Energy US Oil & Gas Drilling
2 Patterson-UTI Energy, Inc. $2.49 B

(Jan. 1, 2026)

 United States US Energy US Oil & Gas Drilling
3 Vantage Drilling International $162.7 M

(Jan. 1, 2026)

 United States US Energy US Oil & Gas Drilling
4 Petrominerals Corp United States US Energy US Oil & Gas Drilling
5 Diamond Offshore Drilling Inc United States US Energy US Oil & Gas Drilling
6 Justiss Oil Co., Inc. United States US Energy US Oil & Gas Drilling
7 Noble Corp plc United States US Energy US Oil & Gas Drilling
8 Beard Co. (The) United States US Energy US Oil & Gas Drilling

Top Oil & Gas Drilling Companies from the United States as of Jan. 11, 2021

1. Helmerich & Payne, Inc.

Company Profile: Helmerich & Payne, Inc.
Market Cap (USD): $2.98 B (Jan. 1, 2026)
Country: United States
Sector: US Energy
Industry: US Oil & Gas Drilling

2. Patterson-UTI Energy, Inc.

Company Profile: Patterson-UTI Energy, Inc.
Market Cap (USD): $2.49 B (Jan. 1, 2026)
Country: United States
Sector: US Energy
Industry: US Oil & Gas Drilling

3. Vantage Drilling International

Company Profile: Vantage Drilling International
Market Cap (USD): $162.7 M (Jan. 1, 2026)
Country: United States
Sector: US Energy
Industry: US Oil & Gas Drilling

4. Petrominerals Corp

Company Profile: Petrominerals Corp
Country: United States
Sector: US Energy
Industry: US Oil & Gas Drilling

5. Diamond Offshore Drilling Inc

Company Profile: Diamond Offshore Drilling Inc
Country: United States
Sector: US Energy
Industry: US Oil & Gas Drilling

6. Justiss Oil Co., Inc.

Company Profile: Justiss Oil Co., Inc.
Country: United States
Sector: US Energy
Industry: US Oil & Gas Drilling

7. Noble Corp plc

Company Profile: Noble Corp plc
Country: United States
Sector: US Energy
Industry: US Oil & Gas Drilling

8. Beard Co. (The)

Company Profile: Beard Co. (The)
Country: United States
Sector: US Energy
Industry: US Oil & Gas Drilling

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