- Kanan Road Oil Inc
- Kanokla Gas Co
- Kantex Oil & Gas
- Kantor Oil Co
- Kapp Co
- KASH All & Gas
- KASH Oil & Gas Inc
- Kauffman Well Svc
- Kaufman Oil Co
- Kauthar Energy Co
- KAYO Oil Co
- KAYO Oil Co
- KAYO Oil Co
- KAYO Oil Co
- Kbk Oil Field Svc Inc
- KCS Resources Inc
- Ke Ron Oil Development
- Kechi Energy LLC
- Keener Oil & Gas Co
- Keener Oil & Gas Co
- Keil Oil Inc
- Keith F Walker Oil & Gas Collp
- Keith Walker
- Kelco Oil LTD
- Keller Depken Oil
- Kelly Oil
- Kelly Oil & Gas
- Kelly Oil & Gas
- Kelt Oil & Gas
- Kelton Operating Corp
- Kemco Resources Inc
- Kemco Resources Inc
- Ken Morrison Shop
- Ken Petroleum
- Ken Petroleum
- Ken Petroleum Corp
- Kenmar Inc
- Kennedy Oil
- Kennedy Oil
- Kennedy RR
- Kenneth G Cone Oil & Gas
- Kenneth O Williams Jr
- Kenneth S White
- Kenoil
- Kent Energy Co
- Kenworthy Operating
- Kenyon Oil Co
- Kenyon Oil Co
- Kenyon Oil Co
- Kenyon Oil Co
- Kenyon Oil Co
- Kenyon Oil Co
- Kenyon Oil Co
- Kenyon Oil Co
- Keohane Inc
- Kerbs Oil Co North
- KERN Co
- Kernen Oil
- Kernen Oil
- Kerogen Resources LLC
- Kerogen Resources LLC
- KERR Mc Gee Rocky Mountain
- KERR Mcgee
- KERR-Mc Gee Oil & Gas
- KERR-Mc Gee Oil & Gas
- KERR-Mc Gee Oil & Gas
- KERR-Mc Gee Oil & Gas Co LLC
- KERR-Mc Gee Oil & Gas Corp
- KERR-Mc Gee Oil & Gas Corp
- KERR-Mc Gee Oil & Gas Corp
- KERR-Mc Gee Oil & Gas Corp
- KERR-Mc Gee Oil & Gas Corp
- KERR-Mc Gee Oil & Gas Corp
- KERR-Mc Gee Oil & Gas Corp
- KERR-Mc Gee Oil & Gas Corp
- KERR-Mc Gee Oil & Gas Corp
- KERR-Mc Gee Oil & Gas Corp
- KERR-Mc Gee Oil & Gas Corp
- KERR-Mc Gee Oil & Gas Corp
- KERR-Mc Gee Oil & Gas Corp
- KERR-Mc Gee Oil & Gas Corp
- KERR-Mcgee
- Kerrco Inc
- Kerrco Inc
- Kerri E Harris & Co
- Kestrel Energy Inc
- Keta Oil
- Kewanee Mfa Oil
- Key Exploration
- Key Gas Corp
- Key Oil & Gas LLC
- Key Production
- Key Production Co
- Key Production Co Inc
- Key Production Co Inc
- Keystone Inc
- Keystone Oil
- Keystone Oil & Gas
- KFE Inc
- KFE Inc
- Khan Oil LLC
- Khanty Mansiysk Oil Corp
- Khanty Mansiysk Oil Corp
- Kibtec Oil & Gas Inc
- Kiel Brothers Oil Co Inc
- Kiel Brothers Oil Inc
- Kiesling Oil Co
- Killam Oil Co
- Killam Oil Co
- Killam Oil Co
- Killbuck Inc Oil Field Hauling
- Kilroy Co Of Texas Inc
- Kilroy Co Of Texas Inc
- Kimball Oil Co Of Texas
- Kimbell Oil Co Of Texas
- Kinder Morgan CO2 Co
- Kinder Morgan Inc
- Kinder Morgan Inc
- Kinder Morgan Inc
- Kinder-Morgan
- King Drilling Co
- King Oil & Gas Of Texas LTD
- King Oil & Gas Of Texas LTD
- King Properties Inc
- Kingery Family LTD
- Kingston Oil Supl Corp
- Kingston Oil Supply Corp
- Kinross Gold USA
- Kiowa Oil Co
- Kiowa Oil Co
- Kirkland Oil Co Inc
- Kirkpatrick Oil Co
- Kiska Oil Co
- Klabzuba Oil & Gas
- Klabzuba Oil & Gas
- Klabzuba Royalty Co
- Klaeger Operating
- KLC Petroleum Co
- KLH Oil & Gas Inc
- KLO
- Kluth Inc
- KMC Oil Tools
- KMT Oil Co
- KMT Oil Co
- Knapp Oil Co Inc
- Knight Oil Tools
- Knight Oil Tools Inc
- Knighton Oil Co
- Knighton Oil Co
- KNOX & Sons Oil Co
- KNOX Energy LLC
- KNOX Oil Of Texas Inc
- Koch Oil Co
- Koch Pipeline Co
- Koch Pipeline Co
- Koch Pipeline Co
- Koch Pipeline Co
- Koch Pipeline Co
- Koch Pipeline Co
- Koch Pipeline Co
- KOLT Oil Co
- Koval Oil & Gas
- KPL Production Co
- Kramer Oil Corp
- Krist Oil Co
- Krist Oil Co
- Krist Oil Co
- Kriti Exploration Inc
- Krumme Oil Co
- Krupp Oil Co
- KSW Oil Field Rental LP
- KUNO Oil Co Inc
- Kunz Oil Co
- Kuo International Oil Inc
- Kuo International Oil Inc
- Kvaerner Oil & Gas
- Kvaerner Oil & Gas
- KWB Oil Property Management
- Kykon Oil & Gas Inc
- KYRO Inc
- L & B Oil & Gas Co Inc
- L & B Oil & Gas Inc
- L & G Opperating Inc
- L & G Petroleum Operating
- L & J Oil Properties
- L & J Producers Inc
- L & J Producers Inc
- L & L Oil Co
- L & M Operating Inc
- L & M Operating Inc
- L & R Oil
- L & R Properties Inc
- L C Neely Drilling Inc
- L C Neely Drilling Inc
- L C Neely Drilling Inc
- L C Neely Drilling Inc
- L D Drilling Co
- L E Perkins
- L E Perkins
- L H Moon
- L Jack Gross Production
- L K Energies Inc
- L K Oil Field Products
- L K Oil Field Products
- L L Oil Co
- L L Wilkins-E & O Co
- L T Oil Co
- L W Lesikar Co
- L W Perusse Oil Co
- LA Barge Minerals
- LA Esperanza Oil & Gas
- Lackey & Clark Oil Co
- Lackey Oil Co
- Ladd Oil & Gas Corp
- Ladd Petroleum
- Ladder Energy Co
- Lahoil Inc Oil Producrs
- Lahoil Inc Oil Producrs
- Lahoil Inc Oil Producrs
- Lahoil Inc Oil Producrs
- Lake Ronel Oil Co
- Lakehead Oil
- Lakeshore Oil & Tire Co Inc
- Lakeside Exploration Corp
- Lakeside Exploration Corp
- Lamamco
- Lamamco Drilling
- Lamamco Drilling Co
- Lamamco Drilling Co
- Lamamco Drilling Co
- Lamamco Drilling Co
- Lamar Holdings Co
- Lamar Holdings Co
- Lamar Oil & Gas Inc
- Lamar Oil & Gas Inc
- Lamco Drilling Co
- Lammaco Drilling Co
- Lamson Petroleum Corp
- Lance Oil & Ga
- Lance Ruffell Oil & Gas Corp
- Lancer Oil Co
- Land & Marine Properties Inc
- Landman
- Landman
- Landreth Co
- Landrum Oil Inc
- Lane Operating
- Lanexco Inc
- Langley Oil Co
- Lank Como Oil
- Lank Como Oil Co
- Largo Oil Co
- Largo Oil Co
- Lario Oil & Gas
- Lario Oil & Gas
- Lario Oil & Gas Co
- Lario Oil & Gas Co
- Lario Oil & Gas Co
- Laroco LLP
- Larrabee Oil & Storage
- Larrabee Oil & Storage
- Larrabee Oil & Storage
- Larry Dandridge
- Larry Dandridge
- Larry Dandridge
- Larsen Oil Co
- Las Animals Natural Gas
- Las Brisas Oil & Gas Inc
- Las Cruces Oil Co
- Lassus Bros Oil
- Lassus Bros Oil Inc
- Lassus Brothers Oil
- Laster Family Partnership
- Late Night Oil Rubs
- Late Night Oil Rubs
- Latex Petroleum
- Latigo Petroleum
- Latigo Petroleum Inc
- Lauck & Assoc
- Laurel Oil Inc
- Laurel Oil Inc
- Lavaca Pipeline
- Lawrence Investment Co
- Lawrence Oil Burner Svc
- Lawrence Oil Co
- Lawson Oil Co
- Lay Pasha Oil LLC
- Layne Energy Inc
- Layne Energy Inc
- LCB Resources
- LDC Inc
- Le Norman Partners LLC
- Leach Brothers Inc
- Leamco Ruthco An Evi Oil Tools
- Lease Management Inc
- Lease Management Inc
- Lease Operators
- Lease Operators
- Lebsack Oil Production Inc
- Lebsack Oil Production Inc
