Exhibit 99.1

CONTINENTAL RESOURCES REPORTS THIRD QUARTER 2015 RESULTS

New Wells in STACK: Ladd 1-8-5XH Flows 2,181 Barrels of Oil Equivalent (Boe) per Day (79% Oil), and Marks 1-9-4XH Flows 994 Boe per Day (73% Oil)

Positive Revisions to 2015 Guidance: Lower Cash Costs and Increased Production

Debt and Credit Facility Changes Reduce Borrowing Costs While Increasing Liquidity

Production for Third Quarter 2015 Averaged 228,278 Boe per Day

Oklahoma City, November 4, 2015 – Continental Resources, Inc. (NYSE: CLR) (Continental or the Company) today announced third quarter 2015 operating and financial results.

Continental reported a net loss of $82.4 million, or $0.22 per diluted share, for third quarter 2015. Adjusted net loss for third quarter 2015 was $43.5 million, or $0.12 per diluted share.

EBITDAX for third quarter 2015 was $472.2 million, compared with EBITDAX of $947.6 million for third quarter 2014. Definitions and reconciliations of adjusted net income and net loss, adjusted earnings per share and EBITDAX to the most directly comparable U.S. generally accepted accounting principles (GAAP) financial measures can be found in the supporting tables at the conclusion of this press release.

“This was another solid quarter’s performance,” said Harold Hamm, Chairman and Chief Executive Officer. “As expected, we continue to deliver on cost controls and operating efficiencies, while maintaining our exploration focus. We continued in the third quarter to improve across the board in the key metrics we control – faster drill times, lower completed well costs, and strong well results from enhanced completions. On the financial side, we remain focused on balancing capital expenditures with cash flow.”

“We are very pleased with the performance of our two recent completions in STACK,” said Jack Stark, President and Chief Operating Officer. “Based on early results and our geologic model, we expect STACK will add significant value to the Company and to our shareholders.”

2015 Guidance Update; Increased Production at Lower Cost

Based on continued strong well performance through the third quarter, the Company is increasing its production growth guidance to a range of 24% to 26% for 2015, compared with the earlier range of 19% to 23% growth over the previous year. Continental expects non-acquisition capital expenditures for fourth quarter 2015 will be in the range of $350 million to $400 million.

Continental is lowering 2015 guidance for production expense, general and administrative (G&A) expense and non-cash equity compensation expense per barrel of oil equivalent (Boe) of production, reflecting increased operating efficiencies companywide. Overall, the guidance on select costs for 2015 has been reduced by a total of $0.85 to $1.05 per Boe of production. Production expense is now expected to be in a range of $4.00 to $4.50 per Boe for the year, production tax is expected to be in a range of 7.5% to

8.0% of oil and gas revenue, and G&A expense is expected to be in a range of $1.70 to $2.00 per Boe. Non-cash equity compensation is expected to be $0.65 to $0.75 per Boe for the year. In addition, Continental is tightening its 2015 guidance range for oil differentials to $7.00 to $9.00 per barrel below the NYMEX daily average compared with the previous range of $7.00 to $10.00 per barrel.

A table with the Company’s full 2015 guidance can be found at the conclusion of this release.

Continental plans to publish 2016 guidance in late December 2015 or early January 2016.

Cost Reductions and Efficiency Improvements

Continental’s drilling and completion costs for most operated wells have declined on average approximately 25% since year-end 2014, due to lower service costs and operational efficiency gains. For the Bakken play, the current estimated drilling and completion cost has decreased to $7.0 million per operated well, compared with $9.6 million per operated well at year-end 2014. At these lower costs and targeted estimated ultimate recovery (EUR) of 800 MBoe per well, the Company has cut its finding cost in half since year-end 2014, doubling its capital efficiency. For the Woodford condensate play, the current estimated drilling and completion cost has decreased to $9.6 million per operated well, compared with $12.2 million per operated well at year-end 2014, based on a 7,500-foot lateral in the Company’s development areas of the South Central Oklahoma Oil Province (SCOOP).

In the Northern Region during third quarter 2015, the Bakken drilling team set multiple new Continental performance records. For example, the Company reduced average drilling time for spud-to-total-depth (TD) by 15%, compared to the average for the first quarter. The average spud-to-TD time in third quarter 2015 was 15.0 days for a two-mile lateral, compared to 17.6 days in the first quarter and 16.6 days in the second quarter of this year. The most significant efficiency achievement came in average days to drill horizontal laterals. The Bakken drilling team in third quarter 2015 set several new lateral drilling records, the most recent drilled being a 9,495-foot lateral in 2.4 days. The Bakken team continues to drive down lease operating expenses, with per-well lease operating expense down 30% in third quarter 2015, compared with fourth quarter 2014. Annualized, this represents approximately $40 million of savings to Continental.

In the Southern Region during third quarter 2015, the drilling team also continued to set new Continental records, demonstrating the future potential for efficiency gains throughout the SCOOP and STACK plays. Leveraging the knowledge gained on the Poteet and Honeycutt density pilots, the SCOOP team was able to drill the Vanarkel density pilot in half the time per well of the first multi-well project.

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On the Newy 8-25-24-13XH well, the SCOOP team set a Continental drilling record for spud-to-TD in 47 days, a 30% reduction in drilling time compared to nearby wells. This well also set a new Oklahoma depth record with a total measured depth of 26,196 feet. On the Kalsu 1-35-2-11XH, the Northwest Cana drilling team set a new Continental record for its Joint Development Agreement (JDA) area, drilling spud-to-TD in 40 days, a 50% reduction from nearby wells.

Production

Third quarter 2015 net production totaled 21.0 million Boe, or 228,278 Boe per day, a sequential increase of 1% from second quarter 2015 and 25% higher than third quarter 2014. Total net production for the third quarter included 147,472 barrels of oil (Bo) per day (65% of production) and 484.8 million cubic feet (MMcf) of natural gas per day (35% of production). In third quarter 2015, sales volumes also totaled 21.0 million Boe, consistent with production for the quarter.

Fourth quarter 2015 daily production is expected to decline compared with third quarter. Continental expects to exit December 2015 with production of approximately 210,000 Boe per day. Continental is currently operating 23 rigs, including 8 rigs in the Bakken and 15 rigs in Oklahoma. The Company has recently added two completion crews in Oklahoma, bringing the total crew count to three. In the Bakken, Continental currently has no completion crews active.

The following table provides the Company’s average daily production by region for the periods presented.

STACK

The Company continues to de-risk its leasehold position in the STACK play in Oklahoma.

Continental recently completed its second and third STACK wells, the Ladd 1-8-5XH and the Marks 1-9-4XH. Both wells targeted the Meramec reservoir in Blaine County, northwest of the Ludwig 1-22-15XH,

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the Company’s initial STACK well. The Ladd tested at an initial production rate of 2,181 Boe per day (79% oil) from a 9,742-foot lateral. The Marks tested at an initial production rate of 994 Boe per day (73% oil) from a 10,092-foot lateral.

Production from the previously announced Ludwig 1-22-15XH well continued to strengthen after it was initially reported last quarter, resulting in a 24-hour peak production rate of 2,782 Boe per day (76% oil).

“Continental and others continue to successfully expand the productive footprint of STACK west into Blaine, Dewey and Custer counties, where the STACK reservoirs are thicker, over-pressured, and are delivering superior production rates,” said Mr. Stark. “More than 95% of our acreage lies in these counties, and approximately 60% is held by production.”

The Company is drilling three additional STACK wells, with one well waiting on completion and expects to spud another two to three wells before year end. Continental has 146,300 net acres in the play. Continental currently has three operated drilling rigs in STACK.

SCOOP Woodford and Springer

In third quarter 2015, total SCOOP net production averaged 69,136 Boe per day, an increase of 11% sequentially compared with second quarter 2015 and 90% compared with third quarter 2014. SCOOP production represented 30% of the Company’s total production in third quarter 2015, compared with 20% of Company production for third quarter 2014.

During third quarter 2015, the Company completed 11 net (34 gross) operated and non-operated wells, while operating an average of eight rigs in SCOOP. Continental’s activities in SCOOP are primarily focused on the Woodford formation and Springer formation, which is located approximately 1,000 to 1,500 feet above the Woodford. Current drilling is focused on the Woodford formation.

Continental currently has 28 gross operated wells drilled and waiting on first production in SCOOP Woodford and Springer, compared to 22 at the end of second quarter 2015, reflecting the deferral of completion activities starting in third quarter 2015. The Company expects this total to increase to approximately 35 gross operated wells drilled and waiting on first production by year-end 2015.

SCOOP Woodford

In third quarter 2015, SCOOP Woodford net production averaged 57,933 Boe per day, a 9% increase sequentially over second quarter 2015. In third quarter 2015, the Company completed five net (27 gross) operated and non-operated Woodford wells in the play.

Select initial test rates from recent SCOOP Woodford operated wells in Grady County include:

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SCOOP Springer

In third quarter 2015, SCOOP Springer net production averaged 11,203 Boe per day, an increase of 22% sequentially over second quarter 2015. The Company completed six net (seven gross) operated and non-operated Springer wells in third quarter 2015.

Select initial test rates from recent SCOOP Springer operated wells in Grady County include:

Northwest Cana Joint Development Agreement

In third quarter 2015, Northwest Cana net production averaged 6,629 Boe per day. The Company completed two net (four gross) operated and non-operated wells in the JDA area in Blaine and Dewey counties in the third quarter.

Select initial test rates from recent operated wells include:

Continental currently has five operated drilling rigs in the JDA area.

Bakken

Continental’s Bakken production averaged 135,609 Boe per day in the third quarter of 2015, an increase of 12% compared with third quarter 2014 and a decrease of 4% compared with second quarter 2015. The Company completed 35 net (160 gross) operated and non-operated Middle Bakken and Three Forks wells during third quarter 2015.

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Continental currently has 123 gross operated wells drilled and waiting on first production in the Bakken, compared to 95 at the end of second quarter 2015. This reflects the deferral of completion activities starting in third quarter 2015 and completed wells that have not commenced production. The Company expects to decrease this total to approximately 115 gross operated wells drilled and waiting on first production at year-end 2015.

Financial Update

In third quarter 2015, Continental’s average realized sales price excluding the effects of derivative positions was $38.95 per Bo and $2.23 per Mcf, or $29.90 per Boe. Settlements of matured commodity derivative positions generated a $0.27 gain per Mcf of natural gas, resulting in a net gain on matured derivatives of $11.9 million, or $0.57 per Boe, for third quarter 2015. Based on realizations without the effect of derivatives, the Company’s third quarter 2015 oil differential was $7.54 per barrel below the NYMEX daily average for the period. The realized natural gas price differential for third quarter 2015 was a negative $0.54 per Mcf.

For third quarter 2015, production expense was $4.00 per Boe sold, compared with $4.39 per Boe for second quarter 2015. Other select operating costs and expenses for third quarter 2015 included production taxes of 7.6% on oil and natural gas sales; depreciation, depletion, amortization and accretion (DD&A) expense of $21.36 per Boe; cash G&A expense of $1.95 per Boe; and equity compensation expense of $0.61 per Boe.

Non-acquisition capital expenditures for third quarter 2015 totaled approximately $540.0 million. Total capital expenditures for the quarter included $477.8 million in exploration and development drilling, $28.4 million in leasehold and seismic, and $33.8 million in workovers, recompletions and other. As noted earlier, Continental expects non-acquisition capital expenditures for fourth quarter 2015 will be in the range of $350 million to $400 million.

As of September 30, 2015, Continental’s balance sheet included approximately $17.0 million in cash and cash equivalents, and $7.1 billion in long-term debt.

“Today we increased the commitments on our revolving credit facility to $2.75 billion and termed out $500 million of revolving debt with a three-year unsecured term note at a current interest rate 1/8% lower than the revolver,” said John Hart, Senior Vice President, Chief Financial Officer and Treasurer. “These transactions reduce overall borrowing costs and demonstrate our ability to provide additional liquidity. After these transactions, we have $880 million of borrowings against the Company’s unsecured credit facility, leaving availability of approximately $1.9 billion.”

He continued, “I want to emphasize these transactions do not indicate plans to grow debt. Our focus remains on balancing capital expenditures with cash flows, and therefore not incurring additional debt. If low commodity prices persist in 2016, we have additional Bakken rigs coming off contract, so we can further reduce capital expenditures. We are concentrated on balance sheet strength and optionality, in preparation for a more favorable, long-term commodity price environment.”

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The following table provides the Company’s production results, average sales prices, per-unit operating costs, results of operations and certain non-GAAP financial measures for the periods presented. Average sales prices exclude any effect of derivative transactions. Per-unit expenses have been calculated using sales volumes.

Third Quarter Conference Call

Continental plans to host a conference call to discuss third quarter results on Thursday, November 5, 2015, at 12 p.m. ET (11 a.m. CT). Those wishing to listen to the conference call may do so via the Company’s website at www.CLR.com or by phone:

A replay of the call will be available for 14 days on the Company’s website or by dialing:

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Continental plans to publish a third quarter 2015 summary presentation to its website at www.CLR.com prior to the start of its earnings conference call on November 5, 2015.

Upcoming Conferences

Members of Continental’s management team will be participating in the following upcoming investment conferences:

Instructions regarding how to access the live and replay webcast for the Bank of America Merrill Lynch presentation and presentation materials for all conferences mentioned above will be available on the Company’s website at www.CLR.com on or prior to the day of the presentations.

About Continental Resources

Continental Resources (NYSE: CLR) is a top independent oil producer in the lower 48 United States and a leader in America’s energy renaissance. Based in Oklahoma City, Continental is the largest leaseholder and one of the largest producers in the nation’s premier oil field, the Bakken play of North Dakota and Montana. The Company also has significant positions in Oklahoma, including its SCOOP Woodford and SCOOP Springer discoveries and the STACK and Northwest Cana plays. With a focus on the exploration and production of oil, Continental has unlocked the technology and resources vital to American energy independence and is a strong free market advocate in favor of lifting the domestic crude oil export ban. In 2015, the Company will celebrate 48 years of operations. For more information, please visit www.CLR.com.

Cautionary Statement for the Purpose of the “Safe Harbor” Provisions of the Private Securities Litigation Reform Act of 1995

This press release includes “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. All statements included in this press release other than statements of historical fact, including, but not limited to, forecasts or expectations regarding the Company’s business and statements or information concerning the Company’s future operations, performance, financial condition, production and reserves, schedules, plans, timing of development, rates of return, budgets, costs, business strategy, objectives, and cash flows are forward-looking statements. When used in this press release, the words “could,” “may,” “believe,” “anticipate,” “intend,” “estimate,” “expect,” “project,” “budget,” “plan,” “continue,” “potential,” “guidance,” “strategy,” and similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain such identifying words.

Forward-looking statements are based on the Company’s current expectations and assumptions about future events and currently available information as to the outcome and timing of future events. Although the Company believes these assumptions and expectations are reasonable, they are inherently subject to

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numerous business, economic, competitive, regulatory and other risks and uncertainties, most of which are difficult to predict and many of which are beyond the Company’s control. No assurance can be given that such expectations will be correct or achieved or that the assumptions are accurate. The risks and uncertainties include, but are not limited to, commodity price volatility; the geographic concentration of our operations; financial market and economic volatility; the inability to access needed capital; the risks and potential liabilities inherent in crude oil and natural gas drilling and production and the availability of insurance to cover any losses resulting therefrom; difficulties in estimating proved reserves and other reserves-based measures; declines in the values of our crude oil and natural gas properties resulting in impairment charges; our ability to replace proved reserves and sustain production; the availability or cost of equipment and oilfield services; leasehold terms expiring on undeveloped acreage before production can be established; our ability to project future production, achieve targeted results in drilling and well operations and predict the amount and timing of development expenditures; the availability and cost of transportation, processing and refining facilities; legislative and regulatory changes adversely affecting our industry and our business, including initiatives related to hydraulic fracturing; increased market and industry competition, including from alternative fuels and other energy sources; and the other risks described under Part I, Item 1A. Risk Factors and elsewhere in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014, registration statements and other reports filed from time to time with the SEC, and other announcements the Company makes from time to time.

Readers are cautioned not to place undue reliance on forward-looking statements, which speak only as of the date on which such statement is made. Should one or more of the risks or uncertainties described in this press release occur, or should underlying assumptions prove incorrect, the Company’s actual results and plans could differ materially from those expressed in any forward-looking statements. All forward-looking statements are expressly qualified in their entirety by this cautionary statement. Except as otherwise required by applicable law, the Company undertakes no obligation to publicly correct or update any forward-looking statement whether as a result of new information, future events or circumstances after the date of this report, or otherwise.

Readers are cautioned that initial production rates are subject to decline over time and should not be regarded as reflective of sustained production levels. In particular, production from horizontal drilling in shale oil and natural gas resource plays and tight natural gas plays that are stimulated with extensive pressure fracturing are typically characterized by significant early declines in production rates.

We use the term “EUR” or “estimated ultimate recovery” to describe potentially recoverable oil and natural gas hydrocarbon quantities. We include these estimates to demonstrate what we believe to be the potential for future drilling and production on our properties. These estimates are by their nature much more speculative than estimates of proved reserves and require substantial capital spending to implement recovery. Actual locations drilled and quantities that may be ultimately recovered from our properties will differ substantially. EUR data included herein remain subject to change as more well data is analyzed.

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Continental Resources, Inc. and Subsidiaries

Unaudited Condensed Consolidated Statements of Income (Loss)

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Continental Resources, Inc. and Subsidiaries

Unaudited Condensed Consolidated Balance Sheets

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Continental Resources, Inc. and Subsidiaries

Unaudited Condensed Consolidated Statements of Cash Flows

Non-GAAP Financial Measures

EBITDAX

We use a variety of financial and operational measures to assess our performance. Among these measures is EBITDAX. We define EBITDAX as earnings before interest expense, income taxes, depreciation, depletion, amortization and accretion, property impairments, exploration expenses, non-cash gains and losses resulting from the requirements of accounting for derivatives, non-cash equity compensation expense, and losses on extinguishment of debt. EBITDAX is not a measure of net income or operating cash flows as determined by U.S. GAAP.

Management believes EBITDAX is useful because it allows us to more effectively evaluate our operating performance and compare the results of our operations from period to period without regard to our financing methods or capital structure. Further, we believe EBITDAX is a widely followed measure of operating performance and may also be used by investors to measure our ability to meet future debt service requirements, if any. We exclude the items listed above from net income (loss) and operating cash flows in arriving at EBITDAX because these amounts can vary substantially from company to company within our industry depending upon accounting methods and book values of assets, capital structures and the method by which the assets were acquired.

EBITDAX should not be considered as an alternative to, or more meaningful than, net income (loss) or operating cash flows as determined in accordance with U.S. GAAP or as an indicator of a company’s operating performance or liquidity. Certain items excluded from EBITDAX are significant components in understanding and assessing a company’s financial performance, such as a company’s cost of capital and tax structure, as well as the historic costs of depreciable assets, none of which are components of EBITDAX. Our computations of EBITDAX may not be comparable to other similarly titled measures of other companies.

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The following table provides a reconciliation of our net income (loss) to EBITDAX for the periods presented.

The following table provides a reconciliation of our net cash provided by operating activities to EBITDAX for the periods presented.

Adjusted earnings and adjusted earnings per share

Our presentation of adjusted earnings and adjusted earnings per share that exclude the effect of certain items are non-GAAP financial measures. Adjusted earnings and adjusted earnings per share represent earnings and diluted earnings per share determined under U.S. GAAP without regard to non-cash gains and losses on derivative instruments, property impairments, gains and losses on asset sales, and losses on extinguishment of debt. Management believes these measures provide useful information to analysts and investors for analysis of our operating results on a recurring, comparable basis from period to period. In addition, management believes these measures are used by analysts and others in valuation, comparison and investment recommendations of companies in the oil and gas industry to allow for analysis without regard to an entity’s specific derivative portfolio, impairment methodologies, and property dispositions. Adjusted earnings and adjusted earnings per share should not be considered in isolation or as a substitute for earnings or diluted earnings per share as determined in accordance with U.S. GAAP

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and may not be comparable to other similarly titled measures of other companies. The following tables reconcile earnings and diluted earnings per share as determined under U.S. GAAP to adjusted earnings and adjusted diluted earnings per share for the periods presented.

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Continental Resources, Inc.

2015 Guidance

As of November 4, 2015⁽¹⁾

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