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|                                                               |  |  |
| IOWA                                                          |   | 42-0935283 |
| (State or other jurisdiction ofincorporation or organization) |   | (I.R.S. EmployerIdentification Number) |

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|                  |  |  |
| COMMON STOCK     |   | NASDAQ |
| (Title of Class) |   | (Name of Exchange on which Registered) |

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|                                   |  |  |  |  |  |
| Large accelerated filer |   | x | Accelerated filer |   | ¨ |
|                              |   |   |   |
| Non-accelerated filer             |   | ¨ | Smaller reporting company |   | ¨ |

|                                      |
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|                                      |  |  |
| Class                                |   | Outstanding at June 22, 2015 |
| Common Stock, no par value per share |   | 38,923,505 shares |

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|                                                |  |  |
| CASEY’S GENERAL STORES, INC.(Registrant) |
|                                           |   |   |
| Date: June 29, 2015                       | By | /s/ Robert J. Myers |
|                                           | Robert J. Myers, Chairman and |
|                                           | Chief Executive Officer |
|                                           | (Principal Executive Officer and Director) |
|                                           |   |   |
| Date: June 29, 2015                       | By | /s/ William J. Walljasper |
|                                           | William J. Walljasper |
|                                           | Senior Vice President and Chief Financial Officer |
|                                           | (Authorized Officer and Principal Financial and Accounting Officer) |

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|                          |  |  |
|                     |   |   |
| Date: June 29, 2015 | By | /s/ Robert J. Myers |
|                     | Robert J. Myers |
|                     | Chairman and Chief Executive Officer, Director |
|                     |   |   |
| Date: June 29, 2015      | By | /s/ William J. Walljasper |
|                     | William J. Walljasper |
|                     | Senior Vice President and Chief Financial Officer |
|                     |   |   |
| Date: June 29, 2015 | By | /s/ Kenneth H. Haynie |
|                     | Kenneth H. Haynie |
|                     | Director |
|                     |   |   |
| Date: June 29, 2015 | By | /s/ Johnny Danos |
|                     | Johnny Danos |
|                     | Director |
|                     |   |   |
| Date: June 29, 2015 | By | /s/ Diane C. Bridgewater |
|                     | Diane C. Bridgewater |
|                     | Director |
|                     |   |   |
| Date: June 29, 2015 | By | /s/ Jeffrey M. Lamberti |
|                     | Jeffrey M. Lamberti |
|                     | Director |

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|                          |  |  |
|                     |   |   |
| Date: June 29, 2015 | By | /s/ Richard Wilkey |
|                     | Richard Wilkey |
|                     | Director |
|                     |   |   |
| Date: June 29, 2015 | By | /s/ H. Lynn Horak |
|                     | H. Lynn Horak |
|                     | Director |
|                     |   |   |
| Date: June 29, 2015 | By | /s/ William C. Kimball |
|                     | William C Kimball |
|                     | Director |
|                     |   |   |
| Date: June 29, 2015 | By | /s/ Larree M. Renda |
|                     | Larree M. Renda |
|                     | Director |

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|             |   |
| Exhibit No. | Description |
|             |   |
| 21               | Subsidiaries of Casey’s General Stores, Inc. |
|             |   |
| 23.1             | Consent of Independent Registered Public Accounting Firm |
|             |   |