Casey General Stores : Q4 FY2018 Earnings Release and Webcast

Exhibit 99.1

NEWS RELEASE FOR IMMEDIATE RELEASE Casey's General Stores, Inc.

One Convenience Blvd. Ankeny, IA 50021

Nasdaq Symbol CASY CONTACT Bill Walljasper (515) 965-6505

Casey's Reports Fiscal 2018 Earnings And Provides Value Creation Plan Update

Ankeny, IA, June 12, 2018 - Casey's General Stores, Inc. (Nasdaq symbol CASY) today reported diluted earnings per share of $8.34 (inclusive of the one-time impact of $4.53 per share related to the adoption of the Tax Cuts and Jobs Act) for the year ended April 30, 2018 compared to $4.48 for the same period last year. For the fourth quarter of fiscal 2018, diluted earnings per share were $0.51 versus $0.76 for the same period a year ago. "A suppressed fuel margin and challenging weather had an adverse impact on fourth quarter results, however we believe we are taking market share in most categories. The 53 new stores we opened in the fourth quarter, combined with increased promotional activity and normalized weather throughout our region has us off to an encouraging start to fiscal 2019," said Terry Handley, President and CEO.

Value Creation Plan Update - The Company has completed or made progress on the following value creation plan activities:

• • Hired a Chief Marketing Officer

• • Completed the initial $300 million share repurchase authorization

• • Increased quarterly dividend 12%, which represents the 18th straight year of increase

• • Finalized a contract with a partner for our fleet card program

• • Enhancing fuel margin through product optimization

• • Identified platforms for fuel and inside price optimization

• • Completed startup and design phase of digital transformation

• • Streamlined current mobile app and online ordering capabilities

• • Generating store level profit improvements from strategic reductions of 24-hour and pizza delivery locations

Fuel - For the year, same-store gallons sold were up 2.3% with an average margin of 18.5 cents per gallon. For the quarter, same-store gallons increased 2.0% with an average margin of 16.3 cents per gallon. "Same-store gallons sold remained strong in the fourth quarter, outpacing miles driven trends in our region signaling an increase in our market share," stated Handley. "However, a rising wholesale cost environment in the fourth quarter resulted in the lowest quarterly fuel margin since fiscal 2014." For fiscal 2018, total gallons sold were up 6.6% to 2.2 billion. Gross profit dollars for the year were up 7.5% to $406.8 million, primarily due to an increase in gallons sold.

Grocery and Other Merchandise - For the year, same-store sales were up 1.9% with an average margin of 31.8%. For the fourth quarter, same-store sales were down 0.4% with an average margin of 31.2%. "The combination of weather and a management decision to reduce 24 hour locations unfavorably impacted the quarterly same-store sales in the fourth quarter," said Handley. "Even with these factors in play, industry data shows that we continue to gain market share in this category." For the year, total sales were up 4.6% to $2.2 billion and gross profit dollars increased 5.5% to $693.6 million.

Prepared Food and Fountain - For the year, same-store sales were up 1.7% with an average margin of 61.0%. For the fourth quarter, same-store sales were down 1.3% with an average margin of 59.7%. "We strategically reduced the number of pizza delivery nights across our chain in the fourth quarter," stated Handley. "The combination of weather, and the 24-hour and pizza delivery adjustments negatively impacted same-store sales. However, thedecrease in overall hours at these stores positively impacted store level profits through the reduction in operating expense." For fiscal 2018, total sales increased 5.5% to $1.0 billion, and gross profit dollars rose 3.3% to $613.7 million.

Operating Expenses - For the fiscal year, operating expenses increased 9.4% to $1.3 billion. For the fourth quarter, operating expenses were up 7.9% from the same time period a year ago. Fourth quarter operating expenses were impacted by the following items:

• • Health insurance expense increased $4.5 million, primarily due to an increase in the number and severity of claims.

• • Credit card fees and fuel expense combined increased $4.4 million, primarily due to a 12.1% increase in retail fuel prices.

• • The Company incurred $1.6 million in consulting fees related to the execution of the value creation plan.

• • Snow removal costs increased $1.2 million, due to inclement weather.

Remaining operating expenses were up 4.7%, primarily due to an increase in the number of stores in operation from the same time period a year ago.

Expansion - For the fiscal year, the Company built and opened 85 new stores, acquired 26 stores, completed 30 replacements, and remodeled 74 stores. As of April 30, 2018, there were 31 new stores, four replacement stores, and three major remodel stores under construction. "We are excited to have opened our first store in the state of Michigan in April," stated Handley. "We're also encouraged by the number of conversations we're having on potential acquisitions. Currently, we have 11 acquisition stores under agreement to purchase, and are actively pursuing additional acquisition opportunities in a disciplined manner."

Share Repurchase Program - From its inception on March 9, 2017, through the end of the fourth quarter of fiscal 2018, the Company repurchased 2,441,600 shares of its common stock under its open market share repurchase program for approximately $264.8 million, or an average price of $108.46 per share. As of April 30, 2018, the Company had a total remaining authorized amount for share repurchases of $35.2 million on its initial $300 million authorization, which was completed in May 2018. In addition, in March 2018, the Board of Directors authorized a new $300 million share repurchase program through fiscal year 2020.

Fiscal 2019 Guidance - The corporate performance guidance for fiscal 2019 is as follows:

Dividend - For the last 18 years, the Company has increased its annual dividend to shareholders. At its June meeting, the Board of Directors increased the quarterly dividend from $.26 to $.29 per share. The dividend is payable August 15th to shareholders of record on August 1st, 2018.

Casey's General Stores, Inc. Condensed Consolidated Statements of Income

(Dollars in thousands, except share and per share amounts) (Unaudited)

Three Months Ended April 30, 2018 2017

Twelve Months Ended April 30, 2018 2017

Total revenue

Cost of goods sold (exclusive of depreciation and amortization, shown separately below)

220,970

$$

Income before income taxes Federal and state income taxes Net income

19,262

30,078

0.52 0.77

0.76

Casey's General Stores, Inc. Condensed Consolidated Balance Sheets

(Dollars in thousands)

(Unaudited)

3,463,021

Certain statements in this news release, including any discussion of management expectations for future periods, constitute "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. Such forward-looking statements involve known and unknown risks, uncertainties, and other factors that may cause actual results to differ materially from future results expressed or implied by those statements. Casey's disclaims any intention or obligation to update or revise forward-looking statements, whether as a result of new information, future events, or otherwise.

Summary by Category (Amounts in thousands)

Three months ended 4/30/2018

FuelGrocery & Other MerchandisePrepared Food & Fountain

Other

Total

of depreciation and amortization)

$ 86,640

159,929 $ 143,949

$

14,597

$

$$ 13,499

$$ 1,846,460

31.1 %

61.7 %

Summary by Category (Amounts in thousands)

Fuel

$ 406,811

693,576

$

613,736

$

55,270

$ 1,769,393 %

2,198,600

$ 2,087,349

$$$ 7,506,587

953,430

51,680

8.6 %

31.5 %

62.3 %

99.8 %

22.4 %

Fuel Margin

(Cents per gallon, excluding credit card fees)

Q1

Q2

Q3

Q4

Fiscal Year

Q1

Q2

Q3

Q4

Fiscal Year

F2018 F2017

3.1

1.9% 3.7

3.8% 2.6

2.0% (0.5)

2.3%

2.1 F2017

19.3¢ 19.5

19.7¢ 18.6

18.6¢ 17.9

16.3¢ 17.2

18.5¢ 18.4

Grocery & Other Merchandise

Same-store Sales Growth

Margin

Q1

Q2

Q3

Q4

Fiscal Year

Q1

Q2

Q3

Q4

Fiscal Year

F2017

4.7

2.5% 3.1

2.5% 3.0

1.9%

1.5

F2016

7.07.5

7.17.4

31.6

32.0

31.1

31.1

31.5

32.631.531.232.131.9

Prepared Food & Fountain Same-store Sales GrowthPrepared Food & Fountain

Margin

Q1

Q2

Q3

Q4

Fiscal Year

Q1

Q2

Q3

Q4

Fiscal Year

F2017

3.2

62.8

62.9

61.7

61.7

62.3

Corporate information is available at this website:https://www.caseys.com. Earnings will be reported during a conference call on June 12, 2018. The call will be broadcast live over the Internet at 9:30 a.m. CST. To access the call, go to the Press Releases and Webcasts section of our website athttps://www.caseys.com/investor-relations/press-releases-and-webcasts. No access code is required. A webcast replay of the call will remain available in an archived format on the Press Releases and Webcasts section of our website athttps://www.caseys.com/investor-relations/press-releases-and-webcasts until June 12, 2022.