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| [X]                  | QUARTERLY REPORT UNDER TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2013 |
|----------------------|------------------------------------------------------------------------------------------------------------------------------------|
| OR                   |
| [   ] | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934                                           |

|   | Large Accelerated Filer                     | [   ] |   | Accelerated Filer         | [   ] |
|--------|---------------------------------------------|----------------------|--------|---------------------------|----------------------|
|   | Non-accelerated Filer                       | [   ] |   | Smaller Reporting Company | [X]                  |
|   | (Do not check if smaller reporting company) |                 |   |                      |

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Table of Contents

|        |                                                            | Incorporated by reference | Filed    |
|-------------|-----------------------------------------------------------------|---------------------------|----------|
| Exhibit No. | Document Description                                            | Form                      | Date     | Number | herewith |
| 3.1(a)      | Articles of Incorporation of Koko, Ltd.                         | S-1                       | 3/12/09  | 3.1 |   |
| 3.1(b)      | Amendment to Articles of Incorporation of Koko, Ltd.            | 10-Q                      | 5/15/13  | 3.1(b) |   |
| 3.2         | Bylaws of Koko, Ltd.                                            | S-1                       | 3/12/09  | 3.2 |   |
| 3.3         | Articles of Organization of Continental Energy Partners, LLC.   | 8-K                       | 10/04/12 | 3.3 |   |
| 3.4         | Amended Articles of Organization of Cardinal Energy Group, LLC. | 8-K                       | 10/04/12 | 3.4 |   |
| 3.5         | Operating Agreement of Cardinal Energy Group, LLC.              | 8-K                       | 10/04/12 | 3.5 |   |
| 4.1         | Form of Class A Redeemable Warrant                              | 10-Q                      | 5/15/13  | 4.1 |   |
| 4.2         | Form of Class B Redeemable Warrant                              | 10-Q                      | 5/15/13  | 4.2 |   |
| 10.1        | License Agreement with Gregory Ruff.                            | S-1                       | 6/13/11  | 10.1 |   |
| 10.4        | Share Exchange Agreement.                                       | 8-K                       | 10/04/12 | 10.4 |   |
| 10.5        | Agreement relating to $20,000 bond dated January 23, 2013       | 10-Q                      | 5/15/13  | 10.5 |   |
| 10.6        | 8% Convertible Promissory Note dated February 26, 2013          | 10-Q                      | 5/15/13  | 10.6 |   |
| 10.7        | Form of 8% Convertible Debenture                                | 10-Q                      | 5/15/13  | 10.7 |   |

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Table of Contents

| 31.1    | Certification of Principal Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. |   |    |   | X      |
|---------|---------------------------------------------------------------------------------------------------------|--------|---------|--------|--------|
| 31.2    | Certification of Principal Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. |   |    |   | X      |
| 32.1    | Certification of Chief Executive Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.     |   |    |   | X      |
| 32.2    | Certification of Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.     |   |    |   | X      |
| 101.INS | XBRL Instance Document.                                                                                 | 10-Q   | 5/15/13 |   |   |
| 101.SCH | XBRL Taxonomy Extension – Schema.                                                                 | 10-Q   | 5/15/13 |   |   |
| 101.CAL | XBRL Taxonomy Extension – Calculations.                                                           | 10-Q   | 5/15/13 |   |   |
| 101.DEF | XBRL Taxonomy Extension – Definitions.                                                            | 10-Q   | 5/15/13 |   |   |
| 101.LAB | XBRL Taxonomy Extension – Labels.                                                                 | 10-Q   | 5/15/13 |   |   |
| 101.PRE | XBRL Taxonomy Extension – Presentation.                                                           | 10-Q   | 5/15/13 |   |   |

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Table of Contents

|   | CARDINAL ENERGY GROUP, INC. |
|--------|-----------------------------|
|   |                        |
|   | BY:                         | TIMOTHY W. CRAWFORD |
|   |                        | Timothy W. Crawford |
|   |                        | Chief Executive Officer (Principal Executive Officer) |
|   |                        |   |
|   | BY:                         | DANIEL TROENDLY |
|   |                        | Daniel Troendly |
|   |                        | Chief Financial Officer (Principal Financial and Accounting Officer) |

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Table of Contents

|        |                                                                                                    | Incorporated by reference | Filed    |
|-------------|---------------------------------------------------------------------------------------------------------|---------------------------|----------|
| Exhibit No. | Document Description                                                                                    | Form                      | Date     | Number | herewith |
| 3.1(a)      | Articles of Incorporation of Koko, Ltd.                                                                 | S-1                       | 3/12/09  | 3.1 |   |
| 3.1(b)      | Amendment to Articles of Incorporation of Koko, Ltd.                                                    | 10-Q                      | 5/15/13  | 3.1(b) |   |
| 3.2         | Bylaws of Koko, Ltd.                                                                                    | S-1                       | 3/12/09  | 3.2 |   |
| 3.3         | Articles of Organization of Continental Energy Partners, LLC.                                           | 8-K                       | 10/04/12 | 3.3 |   |
| 3.4         | Amended Articles of Organization of Cardinal Energy Group, LLC.                                         | 8-K                       | 10/04/12 | 3.4 |   |
| 3.5         | Operating Agreement of Cardinal Energy Group, LLC.                                                      | 8-K                       | 10/04/12 | 3.5 |   |
| 4.1         | Form of Class A Redeemable Warrant                                                                      | 10-Q                      | 5/15/13  | 4.1 |   |
| 4.2         | Form of Class B Redeemable Warrant                                                                      | 10-Q                      | 5/15/13  | 4.2 |   |
| 10.1        | License Agreement with Gregory Ruff.                                                                    | S-1                       | 6/13/11  | 10.1 |   |
| 10.4        | Share Exchange Agreement.                                                                               | 8-K                       | 10/04/12 | 10.4 |   |
| 10.5        | Agreement relating to $20,000 bond dated January 23, 2013                                               | 10-Q                      | 5/15/13  | 10.5 |   |
| 10.6        | 8% Convertible Promissory Note dated February 26, 2013                                                  | 10-Q                      | 5/15/13  | 10.6 |   |
| 10.7        | Form of 8% Convertible Debenture                                                                        | 10-Q                      | 5/15/13  | 10.7 |   |
| 31.1        | Certification of Principal Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. |                      |     |   | X |
| 31.2        | Certification of Principal Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. |                      |     |   | X |
| 32.1        | Certification of Chief Executive Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.     |                      |     |   | X |
| 32.2        | Certification of Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.     |                      |     |   | X |
| 101.INS     | XBRL Instance Document.                                                                                 | 10-Q                      | 5/15/13  |   |   |
| 101.SCH     | XBRL Taxonomy Extension – Schema.                                                                 | 10-Q                      | 5/15/13  |   |   |
| 101.CAL     | XBRL Taxonomy Extension – Calculations.                                                           | 10-Q                      | 5/15/13  |   |   |
| 101.DEF     | XBRL Taxonomy Extension – Definitions.                                                            | 10-Q                      | 5/15/13  |   |   |
| 101.LAB     | XBRL Taxonomy Extension – Labels.                                                                 | 10-Q                      | 5/15/13  |   |   |
| 101.PRE     | XBRL Taxonomy Extension – Presentation.                                                           | 10-Q                      | 5/15/13  |   |   |

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